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Ni T, Hao Y, Ding Z, Chi X, Xie F, Wang R, Bao J, Yan L, Li L, Wang T, Zhang D, Jiang Y. Discovery of a Novel Potent Tetrazole Antifungal Candidate with High Selectivity and Broad Spectrum. J Med Chem 2024; 67:6238-6252. [PMID: 38598688 DOI: 10.1021/acs.jmedchem.3c02188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Thirty-one novel albaconazole derivatives were designed and synthesized based on our previous work. All compounds exhibited potent in vitro antifungal activities against seven pathogenic fungi. Among them, tetrazole compound D2 was the most potent antifungal with MIC values of <0.008, <0.008, and 2 μg/mL against Candida albicans, Cryptococcus neoformans, and Aspergillus fumigatus, respectively, the three most common and critical priority pathogenic fungi. In addition, compound D2 also exhibited potent activity against fluconazole-resistant C. auris isolates. Notably, compound D2 showed a lower inhibitory activity in vitro against human CYP450 enzymes as well as a lower inhibitory effect on the hERG K+ channel, indicating a low risk of drug-drug interactions and QT prolongation. Moreover, with improved pharmacokinetic profiles, compound D2 showed better in vivo efficacy than albaconazole at reducing fungal burden and extending the survival of C. albicans-infected mice. Taken together, compound D2 will be further investigated as a promising candidate.
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Affiliation(s)
- Tingjunhong Ni
- Department of Pharmacy, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 1239 Siping Road ,Shanghai 200092, China
| | - Yumeng Hao
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
| | - Zichao Ding
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
- Department of Pharmacy, 927th Hospital of Joint Logistics Support Force, 3 Yushui Road ,Puer 665000, China
| | - Xiaochen Chi
- School of Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Fei Xie
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
| | - Ruina Wang
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
| | - Junhe Bao
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
| | - Lan Yan
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
| | - Liping Li
- Department of Pharmacy, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 1239 Siping Road ,Shanghai 200092, China
| | - Ting Wang
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
| | - Dazhi Zhang
- Department of Pharmacy, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 1239 Siping Road ,Shanghai 200092, China
- School of Pharmacy, Naval Medical University, No. 325 Guohe Road, Shanghai 200433, China
| | - Yuanying Jiang
- Department of Pharmacy, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 1239 Siping Road ,Shanghai 200092, China
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Hall A, Chatzopoulou M, Frost J. Bioisoteres for carboxylic acids: From ionized isosteres to novel unionized replacements. Bioorg Med Chem 2024; 104:117653. [PMID: 38579492 DOI: 10.1016/j.bmc.2024.117653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/05/2024] [Accepted: 02/19/2024] [Indexed: 04/07/2024]
Abstract
Carboxylic acids are key pharmacophoric elements in many molecules. They can be seen as a problem by some, due to perceived permeability challenges, potential for high plasma protein binding and the risk of forming reactive metabolites due to acyl-glucuronidation. By others they are viewed more favorably as they can decrease lipophilicity by adding an ionizable center which can be beneficial for solubility, and can add enthalpic interactions with the target protein. However, there are many instances where the replacement of a carboxylic acid with a bioisosteric group is required. This has led to the development of a number of ionizable groups which sufficiently mimic the carboxylic acid functionality whilst improving, for example, the metabolic profile of the molecule in question. An alternative strategy involves replacement of the carboxylate by neutral functional groups. This review initially details carefully selected examples whereby tetrazoles, acyl sulfonamides or isoxazolols have been beneficially utilized as carboxylic acid bioisosteres altering physicohemical properties, interactions with the target and metabolism and/or pharmacokinetics, before delving further into the binding mode of carboxylic acid derivatives with their target proteins. This analysis highlights new ways to consider the replacement of carboxylic acids by neutral bioisosteric groups which either rely on hydrogen bonds or cation-π interactions. It should serve as a useful guide for scientists working in drug discovery.
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Affiliation(s)
- Adrian Hall
- UCB, Chemin du Foriest, Braine l'Alleud, Belgium, 1420 UCB, 216 Bath Road, Slough SL1 3WE, UK.
| | - Maria Chatzopoulou
- UCB, Chemin du Foriest, Braine l'Alleud, Belgium, 1420 UCB, 216 Bath Road, Slough SL1 3WE, UK
| | - James Frost
- UCB, Chemin du Foriest, Braine l'Alleud, Belgium, 1420 UCB, 216 Bath Road, Slough SL1 3WE, UK
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3
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Wan J, Nytka M, Qian H, Vu K, Lemr K, Tureček F. Nitrile Imines as Peptide and Oligonucleotide Photo-Cross-Linkers in Gas-Phase Ions. J Am Soc Mass Spectrom 2024; 35:344-356. [PMID: 38252626 DOI: 10.1021/jasms.3c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Nitrile imines produced by photodissociation of 2,5-diaryltetrazoles undergo cross-linking reactions with amide groups in peptide-tetrazole (tet-peptide) conjugates and a tet-peptide-dinucleotide complex. Tetrazole photodissociation in gas-phase ions is efficient, achieving ca. 50% conversion with 2 laser pulses at 250 nm. The formation of cross-links was detected by CID-MS3 that showed structure-significant dissociations by loss of side-chain groups and internal peptide segments. The structure and composition of cross-linking products were established by a combination of UV-vis action spectroscopy and cyclic ion mobility mass spectrometry (c-IMS). The experimental absorption bands were found to match the bands calculated for vibronic absorption spectra of nitrile imines and cross-linked hydrazone isomers. The calculated collision cross sections (CCSth) for these ions were related to the matching experimental CCSexp from multipass c-IMS measurements. Loss of N2 from tet-peptide conjugates was calculated to be a mildly endothermic reaction with ΔH0 = 80 kJ mol-1 in the gas phase. The excess energy in the photolytically formed nitrile imine is thought to drive endothermic proton transfer, followed by exothermic cyclization to a sterically accessible peptide amide group. The exothermic nitrile imine reaction with peptide amides is promoted by proton transfer and may involve an initial [3 + 2] cycloaddition followed by cleavage of the oxadiazole intermediate. Nucleophilic groups, such as cysteine thiol, did not compete with the amide cyclization. Nitrile imine cross-linking to 2'-deoxycytidylguanosine was found to be >80% efficient and highly specific in targeting guanine. The further potential for exploring nitrile-imine cross-linking for biomolecular structure analysis is discussed.
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Affiliation(s)
- Jiahao Wan
- Department of Chemistry, Bagley Hall, Box 351700, University of Washington, Seattle, Washington 98195-1700, United States
| | - Marianna Nytka
- Department of Analytical Chemistry, Faculty of Science, Palacky University, 17. listopadu 12, Olomouc 779 00, Czech Republic
| | - Haocheng Qian
- Department of Chemistry, Bagley Hall, Box 351700, University of Washington, Seattle, Washington 98195-1700, United States
| | - Kim Vu
- Department of Chemistry, Bagley Hall, Box 351700, University of Washington, Seattle, Washington 98195-1700, United States
| | - Karel Lemr
- Department of Analytical Chemistry, Faculty of Science, Palacky University, 17. listopadu 12, Olomouc 779 00, Czech Republic
- Institute of Microbiology of the Czech Academy of Sciences, Prague 142 20, Czech Republic
| | - František Tureček
- Department of Chemistry, Bagley Hall, Box 351700, University of Washington, Seattle, Washington 98195-1700, United States
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4
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Zhang J, Liu J, Li X, Ju Y, Li Y, Zhang G, Li Y. Unexpected Cyclization Product Discovery from the Photoinduced Bioconjugation Chemistry between Tetrazole and Amine. J Am Chem Soc 2024; 146:2122-2131. [PMID: 38190443 DOI: 10.1021/jacs.3c11574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Bioconjugation chemistry has emerged as a powerful tool for the modification of diverse biomolecules under mild conditions. Tetrazole, initially proposed as a bioorthogonal photoclick handle for 1,3-dipolar cyclization with alkenes, was later demonstrated to possess broader photoreactivity with carboxylic acids, serving as a versatile bioconjugation and photoaffinity labeling probe. In this study, we unexpectedly discovered and validated the photoreactivity between tetrazole and primary amine to afford a new 1,2,4-triazole cyclization product. Given the significance of functionalized N-heterocycles in medicinal chemistry, we successfully harnessed the serendipitously discovered reaction to synthesize both pharmacologically relevant DNA-encoded chemical libraries (DELs) and small molecule compounds bearing 1,2,4-triazole scaffolds. Furthermore, the mild reaction conditions and stable 1,2,4-triazole linkage found broad application in photoinduced bioconjugation scenarios, spanning from intramolecular peptide macrocyclization and templated DNA reaction cross-linking to intermolecular photoaffinity labeling of proteins. Triazole cross-linking products on lysine side chains were identified in tetrazole-labeled proteins, refining the comprehensive understanding of the photo-cross-linking profiles of tetrazole-based probes. Altogether, this tetrazole-amine bioconjugation expands the current bioconjugation toolbox and creates new possibilities at the interface of medicinal chemistry and chemical biology.
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Affiliation(s)
- Juan Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Jinlu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Xianfeng Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yunzhu Ju
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yangfeng Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Gong Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yizhou Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
- Beijing National Laboratory for Molecular Sciences, Beijing 100190, P. R. China
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5
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Peng X, Holler CJ, Alves AMF, Oliviera MG, Speake M, Pugliese A, Oskouei MR, de Freitas ID, Chen AYP, Gallegos R, McTighe SM, Koenig G, Hurst RS, Blain JF, Lanter JC, Burnett DA. Discovery and characterization of novel TRPML1 agonists. Bioorg Med Chem Lett 2024; 98:129595. [PMID: 38141860 DOI: 10.1016/j.bmcl.2023.129595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/30/2023] [Accepted: 12/17/2023] [Indexed: 12/25/2023]
Abstract
Screening a library of >100,000 compounds identified the substituted tetrazole compound 1 as a selective TRPML1 agonist. Both enantiomers of compound 1 were separated and profiled in vitro and in vivo. Their selectivity, ready availability and CNS penetration should enable them to serve as the tool compounds of choice in future TRPML1 channel activation studies. SAR studies on conformationally locked macrocyclic analogs further improved the TRPML1 agonist potency while retaining the selectivity.
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Affiliation(s)
- Xiaowen Peng
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA.
| | | | - Anna-Maria F Alves
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Michelle G Oliviera
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Michael Speake
- BioAscent Discovery Ltd, Bo'Ness Rd, Chapelhall, Motherwell ML1 5UH, United Kingdom
| | - Angelo Pugliese
- BioAscent Discovery Ltd, Bo'Ness Rd, Chapelhall, Motherwell ML1 5UH, United Kingdom
| | - Mina R Oskouei
- Symeres Inc, Kerkenbos 1013, 6546 BB Nijmegen, the Netherlands
| | | | - Angela Y-P Chen
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Richard Gallegos
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Stephanie M McTighe
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Gerhard Koenig
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Raymond S Hurst
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Jean-François Blain
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - James C Lanter
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
| | - Duane A Burnett
- Arkuda Therapeutics, 200 Arsenal Yards Blvd Suite 220, Watertown, MA 02472, USA
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6
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Karabanovich G, Fabiánová V, Vocat A, Dušek J, Valášková L, Stolaříková J, Kitson RRA, Pávek P, Vávrová K, Djaout K, Mikušová K, Baulard AR, Cole ST, Korduláková J, Roh J. Both Nitro Groups Are Essential for High Antitubercular Activity of 3,5-Dinitrobenzylsulfanyl Tetrazoles and 1,3,4-Oxadiazoles through the Deazaflavin-Dependent Nitroreductase Activation Pathway. J Med Chem 2024; 67:81-109. [PMID: 38157261 PMCID: PMC10788908 DOI: 10.1021/acs.jmedchem.3c00925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024]
Abstract
3,5-Dinitrobenzylsulfanyl tetrazoles and 1,3,4-oxadiazoles, previously identified as having high in vitro activities against both replicating and nonreplicating mycobacteria and favorable cytotoxicity and genotoxicity profiles were investigated. First we demonstrated that these compounds act in a deazaflavin-dependent nitroreduction pathway and thus require a nitro group for their activity. Second, we confirmed the necessity of both nitro groups for antimycobacterial activity through extensive structure-activity relationship studies using 32 structural types of analogues, each in a five-membered series. Only the analogues with shifted nitro groups, namely, 2,5-dinitrobenzylsulfanyl oxadiazoles and tetrazoles, maintained high antimycobacterial activity but in this case mainly as a result of DprE1 inhibition. However, these analogues also showed increased toxicity to the mammalian cell line. Thus, both nitro groups in 3,5-dinitrobenzylsulfanyl-containing antimycobacterial agents remain essential for their high efficacy, and further efforts should be directed at finding ways to address the possible toxicity and solubility issues, for example, by targeted delivery.
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Affiliation(s)
- Galina Karabanovich
- Charles
University, Faculty of Pharmacy
in Hradec Králové, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Viktória Fabiánová
- Faculty
of Natural Sciences, Department of Biochemistry, Comenius University in Bratislava, Ilkovičova 6, Mlynská
dolina, 842 15 Bratislava, Slovakia
| | - Anthony Vocat
- Global
Health Institute, École Polytechnique
Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Jan Dušek
- Charles
University, Faculty of Pharmacy
in Hradec Králové, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Lenka Valášková
- Charles
University, Faculty of Pharmacy
in Hradec Králové, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Jiřina Stolaříková
- Regional
Institute of Public Health, Department of
Bacteriology and Mycology, Partyzánské náměstí 7, 70200 Ostrava, Czech Republic
| | - Russell R. A. Kitson
- Charles
University, Faculty of Pharmacy
in Hradec Králové, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Petr Pávek
- Charles
University, Faculty of Pharmacy
in Hradec Králové, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Kateřina Vávrová
- Charles
University, Faculty of Pharmacy
in Hradec Králové, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Kamel Djaout
- Univ.
Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and
Immunity of Lille, F-59000 Lille, France
| | - Katarína Mikušová
- Faculty
of Natural Sciences, Department of Biochemistry, Comenius University in Bratislava, Ilkovičova 6, Mlynská
dolina, 842 15 Bratislava, Slovakia
| | - Alain R. Baulard
- Univ.
Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and
Immunity of Lille, F-59000 Lille, France
| | - Stewart T. Cole
- Global
Health Institute, École Polytechnique
Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Jana Korduláková
- Faculty
of Natural Sciences, Department of Biochemistry, Comenius University in Bratislava, Ilkovičova 6, Mlynská
dolina, 842 15 Bratislava, Slovakia
| | - Jaroslav Roh
- Charles
University, Faculty of Pharmacy
in Hradec Králové, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
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El-Sewedy A, El-Bordany EA, Mahmoud NFH, Ali KA, Ramadan SK. One-pot synthesis, computational chemical study, molecular docking, biological study, and in silico prediction ADME/pharmacokinetics properties of 5-substituted 1H-tetrazole derivatives. Sci Rep 2023; 13:17869. [PMID: 37857636 PMCID: PMC10587066 DOI: 10.1038/s41598-023-44615-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/10/2023] [Indexed: 10/21/2023] Open
Abstract
An efficient synthesis of 5-substituted 1H-tetrazoles was successfully achieved through one-pot multi-component condensation reactions of some aromatic aldehydes or indolin-2,3-dione with malononitrile and sodium azide using diverse reaction conditions to obtain considerable product yields. Furthermore, it has been achieved for the first time to construct desired products under neat condition. Molecular docking studies with CSNK2A1 receptor disclosed the lowest binding energy displayed by the dimethoxyphenyl derivative 4c with - 6.8687 kcal/mol. The synthesized tetrazoles were screened for their in-vitro cytotoxic activity against epidermoid cancer cell line (A431) and colon cancer line (HCT116) with respect to normal skin fibroblast cell line (BJ-1) using MTT assay, and antimicrobial activity against the bacteria: K. pneumonia, S. aureus, and the fungi: Candida albicans, as well as their antioxidant activity using 2,2-diphenyl-1-picrylhydrazyl assay. In addition, the toxicity of tetrazole derivative was assessed by determination of their approximate lethal dose fifty (LD50), calculated via an oral administration to rats, through measurement of ALT and bilirubin levels in serum. The antitumor results can suggest that the potent tetrazole derivative namely, 3-(3,4-dimethoxyphenyl)-2-(1H-tetrazol-5-yl)acrylonitrile (4c) could be a potential drug against epidermoid carcinoma. The antioxidant results indicated to tetrazoles exhibited great antioxidant properties even at very low doses. A molecular dynamics simulation was performed for the synthesized compounds (ligands) to investigate their tendency for binding with the active sites of protein.
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Affiliation(s)
- Ahmed El-Sewedy
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
| | - Eman A El-Bordany
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
| | - Naglaa F H Mahmoud
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
| | - Kholoud A Ali
- Zoology Department, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
| | - Sayed K Ramadan
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt.
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8
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Liu XY, Yang YL, Dang Y, Marek I, Zhang FG, Ma JA. Tetrazole Diversification of Amino Acids and Peptides via Silver-Catalyzed Intermolecular Cycloaddition with Aryldiazonium Salts. Angew Chem Int Ed Engl 2023; 62:e202304740. [PMID: 37212541 DOI: 10.1002/anie.202304740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 05/23/2023]
Abstract
Selective structural modification of amino acids and peptides is a central strategy in organic chemistry, chemical biology but also in pharmacology and material science. In this context, the formation of tetrazole rings, known to possess significant therapeutic properties, would expand the chemical space of unnatural amino acids but has received less attention. In this study, we demonstrated that the classic unimolecular Wolff rearrangement of α-amino acid-derived diazoketones could be replaced by a faster intermolecular cycloaddition reaction with aryldiazonium salts under identical practical conditions. This strategy provides an efficient synthetic platform that could transform proteinogenic α-amino acids into a plethora of unprecedented tetrazole-decorated amino acid derivatives with preservation of the stereocenters. Density functional theory studies shed some light on the reaction mechanism and provided information regarding the origins of the chemo- and regioselectivity. Furthermore, this diazo-cycloaddition protocol was applied to construct tetrazole-modified peptidomimetics and drug-like amino acid derivatives.
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Affiliation(s)
- Xuan-Yu Liu
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China
| | - Yi-Lin Yang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China
| | - Yanfeng Dang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China
| | - Ilan Marek
- Schulich Faculty of Chemistry and the Resnick Sustainability Center for Catalysis, Technion-Israel Institute of Technology, Haifa, 3200009, Israel
| | - Fa-Guang Zhang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China
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9
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Dunga AK, Allaka TR, Kethavarapu Y, Nechipadappu SK, Pothana P, Kuppan C, Kishore PVVN. Design, Synthesis, Molecular Docking, ADMET, and Biological Studies of Some Novel 1,2,3-Triazole Linked Tetrazoles as Anticancer Agents. Curr Org Synth 2023; 20:576-587. [PMID: 35996261 DOI: 10.2174/1570179419666220822125724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/18/2022] [Accepted: 06/24/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND 1,2,3-Triazole-tetrazoles have received substantial attention because of their unique bioisosteric properties and an extraordinarily broad spectrum of biological activity, making them interesting for the drug design, and synthesis of a delightful class of widely investigated heterocyclic compounds. To address major health concerns, it is consequently important to devote ongoing effort to the identification and development of New Chemical Entities (NCEs) as possible anticancer medicines. METHODS We began our initial investigation of the reaction between 5-(azidomethyl)-1H-pyrrolo[ 2,3-b]pyridine and 1-phenyl substituted-5-(prop-2-yn-1-ylthio)-1 H-tetrazole under click chemistry to give the corresponding triazole precursors and screened for their cytotoxicity reported by variations in therapeutic actions of the parent molecule. All of the prepared scaffolds were characterized by proton, carbon resonance spectroscopy, IR, and mass spectral techniques. RESULTS When tested for in vitro antitumor activity the prepared compounds 7e, 7h had a significant anticancer activity against human adenocarcinoma Hs766T cell line with IC50 = 5.33, 4.92 μg/mL and Hs460 cell line with IC50 = 4.82, 6.15 μg/mL respectively. Final scaffolds 7f, 7h, and 7j acquire the highest potential drug binding scores ΔG = -10.42, -8.80, -9.37 Kcal/, with amino acids residues Ala A:11 (2.195 A˚), Asp A:119 (1.991 A˚), Thr A:58 (1.890 A˚), Lys A:16 (1.253 A˚), Asp A:38 (2.013 A˚), Lys A:117 (2.046 A˚) respectively and process Lipinski's rule of five as good agents for oral bioavailability. CONCLUSION The molecular framework for the synthesis of novel Aza indole 1,2,3-triazole scaffolds coupled to tetrazole core was discovered in our study and evaluated for their anticancer activity.
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Affiliation(s)
- Ananda Kumar Dunga
- Chemistry Division, Department of Sciences and Humanities, VFSTR (Deemed to be University), Vadlamudi, Guntur- 522213, India
| | - Tejeswara Rao Allaka
- Centre for Chemical Sciences and Technology, Institute of Science & Technology, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad, Telangana-500085, India
| | - Yugandhar Kethavarapu
- Aurobindo Pharma Limited, Industrial Development Area, Pydibimavaram, Srikakulam, Andhra Pradesh-532409, India
| | | | - Pradeep Pothana
- Department of Chemistry, Kakatiya University, Hanamkonda, Warangal, Telangana-506009, India
| | - Chandrasekhar Kuppan
- Chemistry Division, Department of Sciences and Humanities, VFSTR (Deemed to be University), Vadlamudi, Guntur- 522213, India
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10
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Li X, Wu J, Fang F, Li H, Wang L, Wan H, Guan G. Preparation of the 1-Methylimidazole Borane/Tetrazole System for Hypergolic Fuels. Molecules 2022; 27:molecules27144466. [PMID: 35889339 PMCID: PMC9323667 DOI: 10.3390/molecules27144466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 12/01/2022] Open
Abstract
Based on the acid–base neutralization, the (1-methylimidazolium)(tetrazol-1-yl)borane was successfully synthesized by taking advantage of the acidity of the tetrazole and the basicity of the 1-methylimidazole borane complex. Through HRMS, NMR, and FT−IR, the structure of synthetic compounds was characterized in detail. Concerning about the (1-methylimidazolium)(tetrazol-1-yl)borane, it had an ignition−delay time of about 25 ms and a density specific impulse over 351 s·g/cm3, making it a suitable candidate for green hypergolic fuels. Moreover, it also demonstrated that introducing tetrazole into the borane could be an appropriate strategy to adjust the performance of the energy of those borane compounds.
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Affiliation(s)
- Xue Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
| | - Jun Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
| | - Fan Fang
- Centre Hydrogenergy, College of Material Science & Technology, Nanjing University of Aeronaut & Astronaut, Nanjing 210016, China;
| | - Hongping Li
- Institute for Energy Research of Jiangsu University, Jiangsu University, Zhenjiang 212013, China;
| | - Lei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
- Correspondence: (L.W.); (G.G.); Tel.: +86-25-83587198 (L.W. & G.G.)
| | - Hui Wan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
| | - Guofeng Guan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
- Correspondence: (L.W.); (G.G.); Tel.: +86-25-83587198 (L.W. & G.G.)
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11
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Chugunova E, Shaekhov T, Khamatgalimov A, Gorshkov V, Burilov A. DFT Quantum-Chemical Calculation of Thermodynamic Parameters and DSC Measurement of Thermostability of Novel Benzofuroxan Derivatives Containing Triazidoisobutyl Fragments. Int J Mol Sci 2022; 23:ijms23031471. [PMID: 35163391 PMCID: PMC8835801 DOI: 10.3390/ijms23031471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 02/05/2023] Open
Abstract
New derivatives of benzofuroxan containing triazidoisobutyl fragments, opening the way for the creation of highly effective compositions with an increased value of energy characteristics, were synthesized for the first time. Such compounds are also an excellent platform for further modification and for the preparation of new biologically-active compounds containing tetrazole and triazole fragments. Calculations of heats of formation performed with the DFT (density functional theory) method showed that the studied compounds are high-energetic density ones, the enthalpies of formation of which are comparable to the enthalpies of formation of similar benzofuroxan derivatives and exceeds experimental enthalpy of formation of CL-14 (5,7-diamino-4,6-dinitrobenzofuroxan). The analysis of DSC indicates a sufficiently high thermal stability of the synthesized azidobenzofuroxans, which are acceptable for their use as components in the creation of highly efficient compositions with an increased value of energy characteristics.
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Affiliation(s)
- Elena Chugunova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Akad. Arbuzov str. 8, 420088 Kazan, Russia; (A.K.); (A.B.)
- Correspondence: ; Tel.: +7-843-272-7324
| | - Timur Shaekhov
- State Research Institute of Chemical Products Federal State Enterprise, Svetlaya str. 1, 420033 Kazan, Russia;
| | - Ayrat Khamatgalimov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Akad. Arbuzov str. 8, 420088 Kazan, Russia; (A.K.); (A.B.)
| | - Vladimir Gorshkov
- Laboratory of Plant Infectious Diseases, FRC Kazan Scientific Center, Russian Academy of Sciences, Lobachevskogo str. 2/31, 420111 Kazan, Russia;
| | - Alexander Burilov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Akad. Arbuzov str. 8, 420088 Kazan, Russia; (A.K.); (A.B.)
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12
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Hochegger P, Dolensky J, Seebacher W, Saf R, Kaiser M, Mäser P, Weis R. 8-Amino-6-Methoxyquinoline-Tetrazole Hybrids: Impact of Linkers on Antiplasmodial Activity. Molecules 2021; 26:molecules26185530. [PMID: 34577001 PMCID: PMC8470823 DOI: 10.3390/molecules26185530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022] Open
Abstract
A new series of compounds was prepared from 6-methoxyquinolin-8-amine or its N-(2-aminoethyl) analogue via Ugi-azide reaction. Their linkers between the quinoline and the tert-butyltetrazole moieties differ in chain length, basicity and substitution. Compounds were tested for their antiplasmodial activity against Plasmodium falciparum NF54 as well as their cytotoxicity against L-6-cells. The activity and the cytotoxicity were strongly influenced by the linker and its substitution. The most active compounds showed good activity and promising selectivity.
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Affiliation(s)
- Patrick Hochegger
- Institute of Pharmaceutical Sciences, Pharmaceutical Chemistry, University of Graz, Schubertstraße 1, A-8010 Graz, Austria; (J.D.); (W.S.); (R.W.)
- Correspondence: ; Tel.: +43-316-380-5379; Fax: +43-316-380-9846
| | - Johanna Dolensky
- Institute of Pharmaceutical Sciences, Pharmaceutical Chemistry, University of Graz, Schubertstraße 1, A-8010 Graz, Austria; (J.D.); (W.S.); (R.W.)
| | - Werner Seebacher
- Institute of Pharmaceutical Sciences, Pharmaceutical Chemistry, University of Graz, Schubertstraße 1, A-8010 Graz, Austria; (J.D.); (W.S.); (R.W.)
| | - Robert Saf
- Institute for Chemistry and Technology of Materials (ICTM), Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria;
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstraße 57, CH-4002 Basel, Switzerland; (M.K.); (P.M.)
| | - Pascal Mäser
- Swiss Tropical and Public Health Institute, Socinstraße 57, CH-4002 Basel, Switzerland; (M.K.); (P.M.)
| | - Robert Weis
- Institute of Pharmaceutical Sciences, Pharmaceutical Chemistry, University of Graz, Schubertstraße 1, A-8010 Graz, Austria; (J.D.); (W.S.); (R.W.)
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13
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Wang C, Zhang H, Zhang T, Zou X, Wang H, Rosenberger J, Vannam R, Trout WS, Grimm JB, Lavis LD, Thorpe C, Jia X, Li Z, Fox JM. Enabling In Vivo Photocatalytic Activation of Rapid Bioorthogonal Chemistry by Repurposing Silicon-Rhodamine Fluorophores as Cytocompatible Far-Red Photocatalysts. J Am Chem Soc 2021; 143:10793-10803. [PMID: 34250803 PMCID: PMC8765119 DOI: 10.1021/jacs.1c05547] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Chromophores that absorb in the tissue-penetrant far-red/near-infrared window have long served as photocatalysts to generate singlet oxygen for photodynamic therapy. However, the cytotoxicity and side reactions associated with singlet oxygen sensitization have posed a problem for using long-wavelength photocatalysis to initiate other types of chemical reactions in biological environments. Herein, silicon-Rhodamine compounds (SiRs) are described as photocatalysts for inducing rapid bioorthogonal chemistry using 660 nm light through the oxidation of a dihydrotetrazine to a tetrazine in the presence of trans-cyclooctene dienophiles. SiRs have been commonly used as fluorophores for bioimaging but have not been applied to catalyze chemical reactions. A series of SiR derivatives were evaluated, and the Janelia Fluor-SiR dyes were found to be especially effective in catalyzing photooxidation (typically 3%). A dihydrotetrazine/tetrazine pair is described that displays high stability in both oxidation states. A protein that was site-selectively modified by trans-cyclooctene was quantitatively conjugated upon exposure to 660 nm light and a dihydrotetrazine. By contrast, a previously described methylene blue catalyst was found to rapidly degrade the protein. SiR-red light photocatalysis was used to cross-link hyaluronic acid derivatives functionalized by dihydrotetrazine and trans-cyclooctenes, enabling 3D culture of human prostate cancer cells. Photoinducible hydrogel formation could also be carried out in live mice through subcutaneous injection of a Cy7-labeled hydrogel precursor solution, followed by brief irradiation to produce a stable hydrogel. This cytocompatible method for using red light photocatalysis to activate bioorthogonal chemistry is anticipated to find broad applications where spatiotemporal control is needed in biological environments.
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Affiliation(s)
- Chuanqi Wang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - He Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Tao Zhang
- Department of Radiology and Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Xiaoyu Zou
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Hui Wang
- Department of Radiology and Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Julia Rosenberger
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Raghu Vannam
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - William S. Trout
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Jonathan B. Grimm
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn Virginia, 20147, USA
| | - Luke D. Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn Virginia, 20147, USA
| | - Colin Thorpe
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
- Delaware Biotechnology Institute, Newark, Delaware 19711, USA
| | - Zibo Li
- Department of Radiology and Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Joseph M. Fox
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
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14
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Abstract
The merging of click chemistry with discrete photochemical processes has led to the creation of a new class of click reactions, collectively known as photoclick chemistry. These light-triggered click reactions allow the synthesis of diverse organic structures in a rapid and precise manner under mild conditions. Because light offers unparalleled spatiotemporal control over the generation of the reactive intermediates, photoclick chemistry has become an indispensable tool for a wide range of spatially addressable applications including surface functionalization, polymer conjugation and cross-linking, and biomolecular labeling in the native cellular environment. Over the past decade, a growing number of photoclick reactions have been developed, especially those based on the 1,3-dipolar cycloadditions and Diels-Alder reactions owing to their excellent reaction kinetics, selectivity, and biocompatibility. This review summarizes the recent advances in the development of photoclick reactions and their applications in chemical biology and materials science. A particular emphasis is placed on the historical contexts and mechanistic insights into each of the selected reactions. The in-depth discussion presented here should stimulate further development of the field, including the design of new photoactivation modalities, the continuous expansion of λ-orthogonal tandem photoclick chemistry, and the innovative use of these unique tools in bioconjugation and nanomaterial synthesis.
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Affiliation(s)
- Gangam Srikanth Kumar
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260-3000, United States
| | - Qing Lin
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260-3000, United States
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15
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Sonkar C, Malviya N, Sinha N, Mukherjee A, Pakhira S, Mukhopadhyay S. Selective anticancer activities of ruthenium(II)-tetrazole complexes and their mechanistic insights. Biometals 2021; 34:795-812. [PMID: 33900532 DOI: 10.1007/s10534-021-00308-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/15/2021] [Indexed: 01/04/2023]
Abstract
Ruthenium-based metallotherapeutics is an interesting alternative for platinum complexes acting as anticancer agents after the entry of KP1019, NAMI-A, and TLD1339 in clinical trials. Herein, we have synthesized three new arene ruthenium(II)-tetrazole complexes viz. [Ru2(η6-p-cymene)2(2-pytz)2Cl2] (1), [Ru2(η6-p-cymene)2(3-pytz)Cl3] (2), [Ru2(η6-p-cymene)2(4-pytz)Cl3] (3) [2-pytzH = 2-pyridyl tetrazole; 3-pytzH = 3-pyridyl tetrazole; 4-pytzH = 4-pyridyl tetrazole] which have been characterized by different analytical techniques. To aid the understanding of the complex formation, reactions of the arene ruthenium(II) dimer with tetrazoles were investigated using the first principles-based Density Functional Theory (DFT) B3LYP method. Electronic structures, equilibrium geometries of the reactants and products with the first-order saddle points, reactions mechanism, the changes of enthalpy (∆H) and free energy (∆G), chemical stability, and reaction barriers of the complexes were computed using the B3LYP DFT approach. The in vitro cytotoxicity of these complexes was investigated by MTT assay on different cancer cell lines which reveal complex 2 as the most significant cytotoxic agent toward the HeLa cell line. The complexes have also shown a strong binding affinity towards CT-DNA and albumin proteins (HSA and BSA) as analyzed through spectroscopic techniques. Investigation of the mechanism of cell death by complex 2 was further performed by various staining techniques, flow cytometry, and gene expression analysis by RT-PCR. Inhibition of cell migration study has been also revealed the possibility of complex 2 to act as a prospective anti-metastatic agent.
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Affiliation(s)
- Chanchal Sonkar
- Department of Biosciences and Biomedical Engineering, School of Engineering, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore, MP, 453552, India
| | - Novina Malviya
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore, MP, 453552, India
| | - Nilima Sinha
- Department of Metallurgy Engineering and Materials Science (MEMS), School of Engineering, Indian Institute of Technology Indore, Indore, MP, 453552, India
| | - Attreyee Mukherjee
- Department of Chemistry, Ananda Mohan College, Kolkata, WB, 700 009, India
| | - Srimanta Pakhira
- Department of Metallurgy Engineering and Materials Science (MEMS), School of Engineering, Indian Institute of Technology Indore, Indore, MP, 453552, India.
- Department of Physics, School of Basic Sciences, Indian Institute of Technology Indore (IITI), Simrol, Khandwa Road, Indore, MP, 453552, India.
- Centre for Advanced Electronics, Indian Institute of Technology Indore (IITI), Simrol, Khandwa Road, Indore, MP, 453552, India.
| | - Suman Mukhopadhyay
- Department of Biosciences and Biomedical Engineering, School of Engineering, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore, MP, 453552, India.
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore, MP, 453552, India.
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16
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Tukulula M, Louw S, Njoroge M, Chibale K. Synthesis and In Vitro Antiprotozoan Evaluation of 4-/8-Aminoquinoline-based Lactams and Tetrazoles. Molecules 2020; 25:molecules25245941. [PMID: 33333924 PMCID: PMC7765388 DOI: 10.3390/molecules25245941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/18/2020] [Accepted: 11/25/2020] [Indexed: 11/16/2022] Open
Abstract
A second generation of 4-aminoquinoline- and 8-aminoquinoline-based tetrazoles and lactams were synthesized via the Staudinger and Ugi multicomponent reactions. These compounds were subsequently evaluated in vitro for their potential antiplasmodium activity against a multidrug-resistant K1 strain and for their antitrypanosomal activity against a cultured T. b. rhodesiense STIB900 strain. Several of these compounds (4a-g) displayed good antiplasmodium activities (IC50 = 0.20-0.62 µM) that were comparable to the reference drugs, while their antitrypanosomal activity was moderate (<20 µM). Compound 4e was 2-fold more active than primaquine and was also the most active (IC50 = 7.01 µM) against T. b. rhodesiense and also exhibited excellent aqueous solubility (>200 µM) at pH 7.
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Affiliation(s)
- Matshawandile Tukulula
- School of Chemistry and Physics, University of KwaZulu Natal, Durban 4000, South Africa
- Correspondence: ; Tel.: +27-31-260-8756; Fax: +27-31-260-3091
| | - Stefan Louw
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; (S.L.); (M.N.); (K.C.)
- Department of Chemistry and Biochemistry, University of Namibia, Windhoek 10005, Namibia
| | - Mathew Njoroge
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; (S.L.); (M.N.); (K.C.)
| | - Kelly Chibale
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; (S.L.); (M.N.); (K.C.)
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
- South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry University of Cape Town, Rondebosch 7701, South Africa
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17
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Anderson SD, Tabassum A, Yeon JK, Sharma G, Santos P, Soong TH, Thu YW, Nies I, Kurita T, Chandler A, Alsamarah A, Kanassatega RS, Luo YL, Botello-Smith WM, Andresen BT. In silico prediction of ARB resistance: A first step in creating personalized ARB therapy. PLoS Comput Biol 2020; 16:e1007719. [PMID: 33237899 PMCID: PMC7725353 DOI: 10.1371/journal.pcbi.1007719] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 12/09/2020] [Accepted: 09/06/2020] [Indexed: 11/24/2022] Open
Abstract
Angiotensin II type 1 receptor (AT1R) blockers (ARBs) are among the most prescribed drugs. However, ARB effectiveness varies widely, which may be due to non-synonymous single nucleotide polymorphisms (nsSNPs) within the AT1R gene. The AT1R coding sequence contains over 100 nsSNPs; therefore, this study embarked on determining which nsSNPs may abrogate the binding of selective ARBs. The crystal structure of olmesartan-bound human AT1R (PDB:4ZUD) served as a template to create an inactive apo-AT1R via molecular dynamics simulation (n = 3). All simulations resulted in a water accessible ligand-binding pocket that lacked sodium ions. The model remained inactive displaying little movement in the receptor core; however, helix 8 showed considerable flexibility. A single frame representing the average stable AT1R was used as a template to dock Olmesartan via AutoDock 4.2, MOE, and AutoDock Vina to obtain predicted binding poses and mean Boltzmann weighted average affinity. The docking results did not match the known pose and affinity of Olmesartan. Thus, an optimization protocol was initiated using AutoDock 4.2 that provided more accurate poses and affinity for Olmesartan (n = 6). Atomic models of 103 of the known human AT1R polymorphisms were constructed using the molecular dynamics equilibrated apo-AT1R. Each of the eight ARBs was then docked, using ARB-optimized parameters, to each polymorphic AT1R (n = 6). Although each nsSNP has a negligible effect on the global AT1R structure, most nsSNPs drastically alter a sub-set of ARBs affinity to the AT1R. Alterations within N298 –L314 strongly effected predicted ARB affinity, which aligns with early mutagenesis studies. The current study demonstrates the potential of utilizing in silico approaches towards personalized ARB therapy. The results presented here will guide further biochemical studies and refinement of the model to increase the accuracy of the prediction of ARB resistance in order to increase overall ARB effectiveness. The term "personalized medicine" was coined at the turn of the century, but most medicines currently prescribed are based on disease categories and occasionally racial demographics, not personalized attributes. In cardiovascular medicine, the personalization of medication is minimal, despite the fact that not all patients respond equally to common cardiovascular medications. Here we chose one prominent cardiovascular drug target, the angiotensin receptor, and, using computer modeling, created preliminary models of over 100 known alterations to the angiotensin receptor to determine if the alterations changed the ability of clinically used drugs to interact with the angiotensin receptor. The strength of interaction was compared to the wild-type angiotensin receptor, generating a map predicting which alteration affected which drug(s). It is expected that in the future, sequencing of drug targets can be used to compare a patient’s result to a map similar to what is provided in this manuscript to choose the optimal medication based on the patient’s genetics. Such a process has the potential to facilitate the personalization of current medication therapy.
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Affiliation(s)
- Shane D. Anderson
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Asna Tabassum
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Jae Kyung Yeon
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Garima Sharma
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Priscilla Santos
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Tik Hang Soong
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Yin Win Thu
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Isaac Nies
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Tomomi Kurita
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Andrew Chandler
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Abdelaziz Alsamarah
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Rhye-Samuel Kanassatega
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
| | - Yun L. Luo
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
- * E-mail: (YLL); (WMB-S); (BTA)
| | - Wesley M. Botello-Smith
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
- * E-mail: (YLL); (WMB-S); (BTA)
| | - Bradley T. Andresen
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California, United States of America
- * E-mail: (YLL); (WMB-S); (BTA)
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18
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Sommerfeld-Klatta K, Zielińska-Psuja B, Karaźniewcz-Łada M, Główka FK. New Methods Used in Pharmacokinetics and Therapeutic Monitoring of the First and Newer Generations of Antiepileptic Drugs (AEDs). Molecules 2020; 25:E5083. [PMID: 33147810 PMCID: PMC7663638 DOI: 10.3390/molecules25215083] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 12/30/2022] Open
Abstract
The review presents data from the last few years on bioanalytical methods used in therapeutic drug monitoring (TDM) of the 1st-3rd generation and the newest antiepileptic drug (AEDs) cenobamate in patients with various forms of seizures. Chemical classification, structure, mechanism of action, pharmacokinetic data and therapeutic ranges for total and free fractions and interactions were collected. The primary data on bioanalytical methods for AEDs determination included biological matrices, sample preparation, dried blood spot (DBS) analysis, column resolution, detection method, validation parameters, and clinical utility. In conclusion, the most frequently described method used in AED analysis is the LC-based technique (HPLC, UHPLC, USLC) combined with highly sensitive mass detection or fluorescence detection. However, less sensitive UV is also used. Capillary electrophoresis and gas chromatography have been rarely applied. Besides the precipitation of proteins or LLE, an automatic SPE is often a sample preparation method. Derivatization was also indicated to improve sensitivity and automate the analysis. The usefulness of the methods for TDM was also highlighted.
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Affiliation(s)
- Karina Sommerfeld-Klatta
- Department of Toxicology, Poznan University of Medical Sciences, 60-631 Poznań, Poland; (K.S.-K.); (B.Z.-P.)
| | - Barbara Zielińska-Psuja
- Department of Toxicology, Poznan University of Medical Sciences, 60-631 Poznań, Poland; (K.S.-K.); (B.Z.-P.)
| | - Marta Karaźniewcz-Łada
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 60-781 Poznań, Poland;
| | - Franciszek K. Główka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 60-781 Poznań, Poland;
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19
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Xie Y, Fang Y, Huang Z, Tallon AM, Am Ende CW, Fox JM. Divergent Synthesis of Monosubstituted and Unsymmetrical 3,6-Disubstituted Tetrazines from Carboxylic Ester Precursors. Angew Chem Int Ed Engl 2020; 59:16967-16973. [PMID: 32559350 PMCID: PMC7733736 DOI: 10.1002/anie.202005569] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/02/2020] [Indexed: 11/06/2022]
Abstract
Since tetrazines are important tools to the field of bioorthogonal chemistry, there is a need for new approaches to synthesize unsymmetrical and 3-monosubstituted tetrazines. Described here is a general, one-pot method for converting (3-methyloxetan-3-yl)methyl carboxylic esters into 3-thiomethyltetrazines. These versatile intermediates were applied to the synthesis of unsymmetrical tetrazines through Pd-catalyzed cross-coupling and in the first catalytic thioether reduction to access monosubstituted tetrazines. This method enables the development of new tetrazine compounds possessing a favorable combination of kinetics, small size, and hydrophilicity. It was applied to a broad range of aliphatic and aromatic ester precursors and to the synthesis of heterocycles including BODIPY fluorophores and biotin. In addition, a series of tetrazine probes for monoacylglycerol lipase (MAGL) were synthesized and the most reactive one was applied to the labeling of endogenous MAGL in live cells.
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Affiliation(s)
- Yixin Xie
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Yinzhi Fang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Zhen Huang
- Pfizer Worldwide Research and Development, 1 Portland Street, Cambridge, MA, 02139, USA
| | - Amanda M Tallon
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Christopher W Am Ende
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, CT, 06340, USA
| | - Joseph M Fox
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
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20
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Liang Q, Fu X, Zhang J, Hao J, Feng G, Wang J, Li Q, Ahmad F, Zhao X. Immobilized angiotensin II type I receptor: A powerful method of high throughput screening for antihypertensive compound identification through binding interaction analysis. J Chromatogr A 2020; 1620:461003. [PMID: 32156458 DOI: 10.1016/j.chroma.2020.461003] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/24/2020] [Accepted: 02/27/2020] [Indexed: 12/16/2022]
Abstract
The enormous growth in drug discovery paradigm has necessitated continuous exploration of new methods for drug-protein interaction analysis. To enhance the role of these methodologies in designing rational drugs, this work extended an immobilized angiotensin II type I receptor (AT1R) based affinity chromatography in antihypertensive compound identification. We fused haloalkane dehalogenase at C-terminus of AT1R and expressed the fusion receptor in E. coli. The expressed receptor was covalently immobilized onto 8.0 μm microspheres by mixing the cell lysate with 6-chlorocaproic acid-modified amino polystyrene microspheres. The immobilized AT1R was utilized for thermodynamic and kinetic interaction analysis between the receptor and four specific ligands. Following confirmation of these interactions by molecular docking, we identified puerarin and rosmarinic acid by determining their binding to the receptor. Azilsartan, candesartan, valsartan and olmesartan displayed two kinds of binding sites to AT1R by injection amount-dependent method. By molecular docking, we recognize the driving forces of the interaction as electrostatic interaction, hydrogen bonds and van der Waals force. The dissociation rate constants (kd) of azilsartan, candesartan, valsartan and olmesartan to AT1R were 0.01138 ± 0.003, 0.05142 ± 0.003, 0.07547 ± 0.004 and 0.01310 ± 0.005 min-1 by peak profiling assay. Comparing with these parameters, puerarin and rosmarinic acid presented lower affinity (KA: 0.12 × 104 and 1.5 × 104/M) and slower kinetics (kd: 0.6864 ± 0.03 and 0.3005 ± 0.01 min-1) to the receptor. These results, taking together, indicated that the immobilized AT1R has the capacity to probe antihypertensive compounds.
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Affiliation(s)
- Qi Liang
- College of Life Sciences, Northwest University, Xi'an 710069, China; College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China
| | - Xiaoying Fu
- College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Jianfeng Zhang
- Department of Pharmacy, Eighth Hospital of Xi'an City, Xi'an 710061, China
| | - Jiaxue Hao
- College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Gangjun Feng
- College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Jing Wang
- College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Qian Li
- College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Faizan Ahmad
- College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Xinfeng Zhao
- College of Life Sciences, Northwest University, Xi'an 710069, China.
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21
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Wu Y, Zheng J, Xing D, Zhang T. Near-infrared light controlled fluorogenic labeling of glycoengineered sialic acids in vivo with upconverting photoclick nanoprobe. Nanoscale 2020; 12:10361-10368. [PMID: 32369049 DOI: 10.1039/c9nr10286h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sialic acid serves as an important determinant for profiling cell activities in diverse biological and pathological processes. The precise control of sialic acid labeling to visualize its biological pathways under endogenous conditions is significant but still challenging due to the lack of reliable methods. Herein, we developed an effective strategy to spatiotemporally label thesialic acids with a near-infrared (NIR) light activated upconverting nanoprobe (Tz-UCNP). With this photoclickable nanoprobe and a stable N-alkene-d-mannosamine (Ac4ManNIPFA), metabolically synthesized alkene sialic acids on the cell surface were labeled and imaged in real time through fluorogenic cycloaddition. More importantly, we achieved spatially selective visualization of sialic acids in specific tumor tissues of the mice under NIR light activation in a spatially controlled manner. This in situ controllable labeling strategy thus enables the metabolic labeling of specific sialic acids in complex biological systems.
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Affiliation(s)
- Yunxia Wu
- MOE key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, P.R. China.
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22
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Shekouhy M, Karimian S, Moaddeli A, Faghih Z, Delshad Y, Khalafi-Nezhad A. The synthesis and biological evaluation of nucleobases/tetrazole hybrid compounds: A new class of phosphodiesterase type 3 (PDE3) inhibitors. Bioorg Med Chem 2020; 28:115540. [PMID: 32503691 DOI: 10.1016/j.bmc.2020.115540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/22/2020] [Accepted: 04/29/2020] [Indexed: 01/12/2023]
Abstract
Spired by the chemical structure of Cilostazol, a selective phosphodiesterase 3A (PDE3A) inhibitor, several novel hybrid compounds of nucleobases (uracil, 6-azauracil, 2-thiuracil, adenine, guanine, theophylline and theobromine) and tetrazole were designed and successfully synthesized and their inhibitory effects on PDE3A as well as their cytotoxicity on HeLa and MCF-7 cancerous cell lines were studied. Obtained results show the linear correlation between the inhibitory effect of synthesized compounds and their cytotoxicity. In some cases, the PDE3A inhibitory effects of synthesized compounds are higher than the Cilostazol. Besides, compared to a standard anticancer drug methotrexate, some of the synthesized compounds showed the higher cytotoxicity against the HeLa and MCF-7 cancerous cell lines.
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Affiliation(s)
- Mohsen Shekouhy
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran.
| | - Somaye Karimian
- Department of Medicinal Chemistry, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Moaddeli
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran; Legal Medicine Research Center, Legal Medicine Organization, Tehran, Iran
| | - Zeinab Faghih
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Yousef Delshad
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Ali Khalafi-Nezhad
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran.
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23
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Tiago JPF, Sicupira LC, Barros RE, de Pinho GP, Silvério FO. Simultaneous and direct determination of glyphosate and AMPA in water samples from the hydroponic cultivation of eucalyptus seedlings using HPLC-ICP-MS/MS. J Environ Sci Health B 2020; 55:558-565. [PMID: 32107966 DOI: 10.1080/03601234.2020.1733369] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Glyphosate is the main herbicide currently used in the world due to wide applicability and efficiency in controlling weeds in many crops. However, its overuse may lead to undesirable impacts on the environment and to human health in the long run. This present study aimed to optimize and validate solid phase extraction (SPE) using an anionic resin for the simultaneous and direct determination of glyphosate and aminomethylphosphonic acid (AMPA) in water samples using high-performance liquid chromatography combined with inductively coupled plasma with triple quadrupole mass spectrometer (HPLC-ICP-MS/MS). The results showed that recovery percentage and relative standard deviation were 103.9 ± 7.9 and 99.40 ± 9.9% for glyphosate and AMPA, respectively. The validation certified that the method was precise, accurate, linear, and selective, with a limit of quantification of 1.09 and 0.29 μg L-1 for glyphosate and AMPA, respectively. The optimized methodology reached the concentration factor of 250 times and was successfully applied to analyze water samples from hydroponic cultivation of the eucalyptus seedlings. The results showed that the exudation process occurs at glyphosate doses starting from 2 L ha-1.
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Affiliation(s)
- João P F Tiago
- Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
| | - Lázaro C Sicupira
- Institute of Engineering, Science and Technology, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Janaúba, Minas Gerais, Brazil
| | - Rodrigo E Barros
- Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
| | - Gevany P de Pinho
- Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
| | - Flaviano O Silvério
- Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
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24
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Halasz A, Hawari J, Perreault NN. Photodegradation of bis(1H-tetrazol-5-yl)amine (H 2BTA), a high nitrogen content tetrazole-based energetic compound in water. Chemosphere 2020; 241:125008. [PMID: 31604194 DOI: 10.1016/j.chemosphere.2019.125008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/08/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
Tetrazoles have wide industrial applications, notably in the pharmaceutical industry. Tetrazole derivatives such as bis(1H-tetrazol-5-yl)amine (H2BTA) have recently been considered by the defense industry as high nitrogen composite propellants. Photodegradation studies under solar simulating conditions showed that H2BTA was partially degraded in water, while it was completely degraded under UV light at 254 nm. When H2BTA (0.35 mM) was irradiated with simulated sunlight at pH 3.65, there was a 1-day lag phase before the chemical started to degrade, reaching 43.5% degradation after 7 d. However, when pH increased to 5.76, it degraded without lag phase, suggesting that an HBTA- anion was involved in the initial degradation of the chemical. 5-Aminotetrazole (5-AT) was identified as a final degradation product and N-(1H-tetrazol-5-yl)formamide(T(5 yl)FA) and 1H-tetrazol-5-ylcarbamic acid (T(5 yl)CA) as intermediate products. At λ = 254 nm, H2BTA disappeared rapidly, resulting in the loss of 94% after 65 min. 5-AT was detected together with several transient products including N-(1H-tetrazol-5-yl)carbamohydrazonic acid (T(5 yl)CHA) and T(5 yl)FA. Kinetic studies and products analysis revealed that H2BTA photodegraded via two initial routes. One route (a) marked by the initial loss of HN3 and another (b) marked by the initial loss of N2. Route a) was characteristics for irradiation with simulated sunlight; however, routes a) and b) proceeded simultaneously under UV light. 5-AT eventually degraded to presumably give N2 and/or HN3 under UV light. Understanding the photodegradation pathway of H2BTA under simulated sunlight can help in providing the basis for natural attenuation assessment of the chemical in contaminated aquatic environments.
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Affiliation(s)
- Annamaria Halasz
- National Research Council Canada, 6100 Royalmount Ave, Montreal, Quebec, H4P 2R2, Canada
| | - Jalal Hawari
- Department of Civil, Geological and Mining Engineering, Ecole Polytechnique de Montréal, Montreal, Quebec, H3C 3A7, Canada
| | - Nancy N Perreault
- National Research Council Canada, 6100 Royalmount Ave, Montreal, Quebec, H4P 2R2, Canada.
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25
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Timm A, Abendschön P, Tölgyesi L, Horn H, Borowska E. Solar-mediated degradation of linezolid and tedizolid under simulated environmental conditions: Kinetics, transformation and toxicity. Chemosphere 2020; 241:125111. [PMID: 31683437 DOI: 10.1016/j.chemosphere.2019.125111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 06/10/2023]
Abstract
Linezolid (LIN) and Tedizolid (TED) are representatives of oxazolidinone antibiotics of last resort with a strong efficacy against gram-positive bacteria. This study focused on their solar-mediated degradation to understand better their fate in aquatic environment, for the realistic concentrations in the range of 1 μg/L. Results showed that both antibiotics (ABs) are degradable by simulated sunlight (1 kW/m2), with half-lives of 32 and 93 h in ultrapure water, for LIN and TED, respectively. LIN showed similar photolytic behaviour in pure solution and in surface water, whereas sunlight enhanced the degradation of LIN in pure solutions, but not in surface water. Structure elucidation by liquid chromatography coupled to high resolution mass spectrometry provided information about seven transformation products for LIN and five for TED. The morpholinyl-ring was identified as the target site for most transformation reactions of LIN. TED was prone to oxidation and cleavage of the oxazolidinone ring. Results of a growth inhibition test on Bacillus subtilis exposed to UV light showed antibacterial efficacy of transformation products of LIN and no significant efficacy of degradation products of TED for the concentration range of 100 μg/L-10 mg/L of parent compounds. Photolytically treated solutions of the ABs maintained their inhibitory effect on the bioluminescence of Aliivibrio fischeri.
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Affiliation(s)
- Alexander Timm
- Karlsruhe Institute of Technology (KIT), Engler-Bunte-Institut, Water Chemistry and Water Technology, Engler-Bunte-Ring 9a, 76131, Karlsruhe, Germany
| | - Patrick Abendschön
- Hochschule Bonn-Rhein-Sieg, Section 5, von-Liebig-Straße 20, 53359, Rheinbach, Germany
| | - László Tölgyesi
- Agilent Technologies Sales & Services GmbH and Co. KG, Hewlett-Packard-Straße 8, 76337, Waldbronn, Germany
| | - Harald Horn
- Karlsruhe Institute of Technology (KIT), Engler-Bunte-Institut, Water Chemistry and Water Technology, Engler-Bunte-Ring 9a, 76131, Karlsruhe, Germany; DVGW Research Laboratories for Water Chemistry and Water Technology, Engler-Bunte-Ring 9a, 76131, Karlsruhe, Germany.
| | - Ewa Borowska
- Karlsruhe Institute of Technology (KIT), Engler-Bunte-Institut, Water Chemistry and Water Technology, Engler-Bunte-Ring 9a, 76131, Karlsruhe, Germany
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26
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Narimani M, da Silva G. Thermal decomposition kinetics of glyphosate (GP) and its metabolite aminomethylphosphonic acid (AMPA). Environ Sci Process Impacts 2020; 22:152-160. [PMID: 31778134 DOI: 10.1039/c9em00422j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Glyphosate (GP) is a widely used herbicide worldwide, yet accumulation of GP and its main byproduct, aminomethylphosphonic acid (AMPA), in soil and water has raised concerns about its potential effects on human health. Thermal treatment, in which contaminants are vaporised and decomposed in the gas-phase, is one option for decontaminating material containing GP and AMPA, yet the thermal decomposition chemistry of these compounds remains poorly understood. Here, we have revealed the thermal decomposition mechanism of GP and AMPA in the gas phase by applying computational chemistry and reaction rate theory methods. The preferred decomposition channel for both substances involves the elimination of P(OH)3 to yield the imine N-methylene-glycine (from GP) or methanimine (from AMPA), with relatively low barrier heights (ca. 45 kcal mol-1). The half-life of GP and AMPA at 1000 K are predicted to be 0.1 and 4 ms respectively, and they should be readily destroyed via conventional incineration processes. The further decomposition of N-methylene-glycine is expected to also take place at similar temperatures, leading to N-methyl-methanimine + CO2, with a barrier height of ca. 48 kcal mol-1. The imine decomposition products of GP and AMPA are expected to react with water vapour to form simple amines and carbonyl compounds.
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Affiliation(s)
- Milad Narimani
- Department of Chemical Engineering, University of Melbourne, Victoria 3010, Australia.
| | - Gabriel da Silva
- Department of Chemical Engineering, University of Melbourne, Victoria 3010, Australia.
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27
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Mergemeier K, Galster F, Lehr M. HPLC-UV assay for the evaluation of inhibitors of plasma amine oxidase using crude bovine plasma. J Enzyme Inhib Med Chem 2019; 34:144-149. [PMID: 30427224 PMCID: PMC6237158 DOI: 10.1080/14756366.2018.1524890] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/04/2018] [Accepted: 09/13/2018] [Indexed: 11/21/2022] Open
Abstract
Recently, we have described a method for evaluation of plasma amine oxidase (PAO) inhibitors, which monitors the formation of 6-(5-phenyl-2H-tetrazol-2-yl)hexanal from the corresponding amine substrate by HPLC with UV-detection using purified bovine PAO. We now investigated, whether crude bovine plasma can be used as enzyme source in this assay instead of the purified enzyme. With the aid of specific inhibitors, it was ensured that there was no detectable activity of other important amine oxidases in the plasma, namely monoamine oxidase (MAO) A and B and diamine oxidase (DAO). For a series of ω-(5-phenyl-2H-tetrazol-2-yl)alkan-1-amine substrates similar conversion rates were measured for both the purified PAO and crude plasma. The inhibition values determined for the PAO inhibitor 2-(4-phenylphenyl)acetohydrazide (16) under different conditions also corresponded. Additionally, inhibition data of the known PAO inhibitor 2-amino-N-(3-phenylbenzyl)acetamide (17) and a newly synthesised meta-substituted derivative of 16 were determined, which together reflect the two-step inhibition mechanism of these covalent inhibitors.
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Affiliation(s)
- Kira Mergemeier
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Münster, Germany
| | - Florian Galster
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Münster, Germany
| | - Matthias Lehr
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Münster, Germany
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28
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Matsuzaki Y, Yoshimoto Y, Arimori S, Kiguchi S, Harada T, Iwahashi F. Discovery of metyltetraprole: Identification of tetrazolinone pharmacophore to overcome QoI resistance. Bioorg Med Chem 2019; 28:115211. [PMID: 31753801 DOI: 10.1016/j.bmc.2019.115211] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/05/2019] [Accepted: 11/07/2019] [Indexed: 11/18/2022]
Abstract
Quinone outside inhibitors (QoIs) are one of the major agricultural fungicide groups used worldwide. However, the development of resistance by different pathogenic species associated with specific mutation at the target gene site is becoming a critical issue for the sustainable use of QoIs. The authors aimed to design a novel QoI molecule to overcome the aforementioned issue. A rational approach to avoid steric hindrance between the QoI molecule and the mutated target site was successfully employed. The resulting compound, metyltetraprole, is characterized by 3-substituted central ring with a tetrazolinone moiety, the key structure to retain potent activity against QoI-resistant mutants. Metyltetraprole is a promising new fungicide under commercial development, and its development in this study has paved the way to overcoming resistance to QoI fungicides.
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Affiliation(s)
- Yuichi Matsuzaki
- Health and Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd., Takarazuka, Japan.
| | - Yuya Yoshimoto
- Health and Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd., Takarazuka, Japan
| | - Sadayuki Arimori
- Health and Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd., Takarazuka, Japan
| | - So Kiguchi
- Health and Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd., Takarazuka, Japan
| | - Toshiyuki Harada
- Health and Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd., Takarazuka, Japan
| | - Fukumatsu Iwahashi
- Health and Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd., Takarazuka, Japan
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29
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Tu Y, Yu Y, Zhou Z, Xie S, Yao B, Guan S, Situ B, Liu Y, Kwok RTK, Lam JWY, Chen S, Huang X, Zeng Z, Tang BZ. Specific and Quantitative Detection of Albumin in Biological Fluids by Tetrazolate-Functionalized Water-Soluble AIEgens. ACS Appl Mater Interfaces 2019; 11:29619-29629. [PMID: 31340641 DOI: 10.1021/acsami.9b10359] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The analysis of albumin has clinical significance in diagnostic tests and obvious value to research studies on the albumin-mediated drug delivery and therapeutics. The present immunoassay, instrumental techniques, and colorimetric methods for albumin detection are either expensive, troublesome, or insensitive. Herein, a class of water-soluble tetrazolate-functionalized derivatives with aggregation-induced emission (AIE) characteristics is introduced as novel fluorescent probes for albumin detection. They can be selectively lighted up by site-specific binding with albumin. The resulting albumin fluorescent assay exhibits a low detection limit (0.21 nM), high robustness in aqueous buffer (pH = 6-9), and a broad tunable linear dynamic range (0.02-3000 mg/L) for quantification. The tetrazolate functionality endows the probes with a superior water solubility (>0.01 M) and a high binding affinity to albumin (KD = 0.25 μM). To explore the detection mechanism, three unique polar binding sites on albumin are computationally identified, where the multivalent tetrazolate-lysine interactions contribute to the tight binding and restriction of the molecular motion of the AIE probes. The key role of lysine residues is verified by the detection of poly-l-lysine. Moreover, we applied the fluorogenic method to quantify urinary albumin in clinical samples and found it a feasible and practical strategy for albumin analysis in complex biological fluids.
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Affiliation(s)
- Yujie Tu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , China
| | | | - Zhibiao Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , China
| | - Sheng Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , China
| | | | - Shujuan Guan
- Department of Laboratory Medicine, Nanfang Hospital , Southern Medical University , Guangzhou 510515 , China
| | - Bo Situ
- Department of Laboratory Medicine, Nanfang Hospital , Southern Medical University , Guangzhou 510515 , China
| | | | | | | | - Sijie Chen
- Ming Wai Lau Center for Reparative Medicine , Karolinska Institutet , Hong Kong 999077 , China
| | | | - Zebing Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , China
| | - Ben Zhong Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , China
- State Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced Emission, (Guangzhou International Campus) , South China University of Technology , Guangzhou 510640 , China
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30
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Bhardwaj B, Baidya ATK, Amin SA, Adhikari N, Jha T, Gayen S. Insight into structural features of phenyltetrazole derivatives as ABCG2 inhibitors for the treatment of multidrug resistance in cancer. SAR QSAR Environ Res 2019; 30:457-475. [PMID: 31157558 DOI: 10.1080/1062936x.2019.1615545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
ABCG2 is the principal ABC transporter involved in the multidrug resistance of breast cancer. Looking at the current demand in the development of ABCG2 inhibitors for the treatment of multidrug-resistant cancer, we have explored structural requirements of phenyltetrazole derivatives for ABCG2 inhibition by combining classical QSAR, Bayesian classification modelling and molecular docking studies. For classical QSAR, structural descriptors were calculated from the free software tool PaDEL-descriptor. Stepwise multiple linear regression (SMLR) was used for model generation. A statistically significant model was generated and validated with different parameters (For training set: r = 0.825; Q2 = 0.570 and for test set: r = 0.894, r2pred = 0.783). The predicted model was found to satisfy the Golbraikh and Trospha criteria for model acceptability. Bayesian classification modelling was also performed (ROC scores were 0.722 and 0.767 for the training and test sets, respectively). Finally, the binding interactions of phenyltetrazole type inhibitor with the ABCG2 receptor were mapped with the help of molecular docking study. The result of the docking analysis is aligned with the classical QSAR and Bayesian classification studies. The combined modelling study will guide the medicinal chemists to act faster in the drug discovery of ABCG2 inhibitors for the management of resistant breast cancer.
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Affiliation(s)
- B Bhardwaj
- a Laboratory of Drug Design and Discovery, Department of Pharmaceutical Sciences , Dr. Harisingh Gour University , Madhya Pradesh , India
| | - A T K Baidya
- a Laboratory of Drug Design and Discovery, Department of Pharmaceutical Sciences , Dr. Harisingh Gour University , Madhya Pradesh , India
| | - S A Amin
- b Natural Science Laboratory, Department of Pharmaceutical Technology, Division of Medicinal & Pharmaceutical Chemistry , Jadavpur University , Kolkata , India
| | - N Adhikari
- b Natural Science Laboratory, Department of Pharmaceutical Technology, Division of Medicinal & Pharmaceutical Chemistry , Jadavpur University , Kolkata , India
| | - T Jha
- b Natural Science Laboratory, Department of Pharmaceutical Technology, Division of Medicinal & Pharmaceutical Chemistry , Jadavpur University , Kolkata , India
| | - S Gayen
- a Laboratory of Drug Design and Discovery, Department of Pharmaceutical Sciences , Dr. Harisingh Gour University , Madhya Pradesh , India
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31
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Xu B, Sun QJ, Lan JCW, Chen WM, Hsueh CC, Chen BY. Exploring the glyphosate-degrading characteristics of a newly isolated, highly adapted indigenous bacterial strain, Providencia rettgeri GDB 1. J Biosci Bioeng 2019; 128:80-87. [PMID: 30782422 DOI: 10.1016/j.jbiosc.2019.01.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/13/2018] [Accepted: 01/14/2019] [Indexed: 01/20/2023]
Abstract
This study explored the characteristics of a newly isolated glyphosate (GLYP)-degrading bacterium Providencia rettgeri GDB 1, for GLYP bioremediation. Due to the serial selection pressure of high GLYP concentrations for enriched isolation, this highly tolerant GLYP biodegrader shows very promising capabilities for GLYP removal (approximately 71.4% degradation efficiency) compared to previously reported strains. High performance liquid chromatography analyses showed aminomethylphosphonic acid (AMPA) rather than sarcosine (SAR) to be the sole intermediate of GLYP decomposition via the AMPA formation pathway. Moreover, GLYP biodegradation was biochemically favorable in aerobic cultures due to its strong growth-associated characteristics. To the best of our knowledge, this is the first report to indicate that bacterial strains in the Providencia genus could demonstrate highly promising GLYP-degrading characteristics in environments with high GLYP contents.
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Affiliation(s)
- Bin Xu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Research Center for Learning Science, Southeast University, Nanjing 210096, PR China; Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Qing-Jiang Sun
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Research Center for Learning Science, Southeast University, Nanjing 210096, PR China
| | - John Chi-Wei Lan
- Biorefinery and Bioprocess Engineering Laboratory, Department of Chemical Engineering and Materials Science, Yuan Ze University, Chungli, Taoyuan 32003, Taiwan
| | - Wen-Ming Chen
- Department of Seafood Science, National Kaohsiung Marine University, No. 142 Hai-Chuan Road, Nan-Tzu, Kaohsiung 811, Taiwan
| | - Chung-Chuan Hsueh
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan.
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Tu J, Svatunek D, Parvez S, Liu ACG, Levandowski BJ, Eckvahl HJ, Peterson RT, Houk KN, Franzini RM. Stable, Reactive, and Orthogonal Tetrazines: Dispersion Forces Promote the Cycloaddition with Isonitriles. Angew Chem Int Ed Engl 2019; 58:9043-9048. [PMID: 31062496 PMCID: PMC6615965 DOI: 10.1002/anie.201903877] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/25/2019] [Indexed: 12/11/2022]
Abstract
The isocyano group is a structurally compact bioorthogonal functional group that reacts with tetrazines under physiological conditions. Now it is shown that bulky tetrazine substituents accelerate this cycloaddition. Computational studies suggest that dispersion forces between the isocyano group and the tetrazine substituents in the transition state contribute to the atypical structure-activity relationship. Stable asymmetric tetrazines that react with isonitriles at rate constants as high as 57 L mol-1 s-1 were accessible by combining bulky and electron-withdrawing substituents. Sterically encumbered tetrazines react selectively with isonitriles in the presence of strained alkenes/alkynes, which allows for the orthogonal labeling of three proteins. The established principles will open new opportunities for developing tetrazine reactants with improved characteristics for diverse labeling and release applications with isonitriles.
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Affiliation(s)
- Julian Tu
- Department of Medicinal Chemistry, University of Utah, 30 S 2000 E, Salt Lake City, Utah 84112 (USA)
| | - Dennis Svatunek
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569 (USA)
| | - Saba Parvez
- Department of Pharmacology and Toxicology, University of Utah, 30 S 2000 E, Salt Lake City, Utah 84112 (USA)
| | - Albert C. G. Liu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569 (USA)
| | - Brian J. Levandowski
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569 (USA)
| | - Hannah J. Eckvahl
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569 (USA)
| | - Randall T. Peterson
- Department of Pharmacology and Toxicology, University of Utah, 30 S 2000 E, Salt Lake City, Utah 84112 (USA)
| | - Kendall N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569 (USA)
| | - Raphael M. Franzini
- Department of Medicinal Chemistry, University of Utah, 30 S 2000 E, Salt Lake City, Utah 84112 (USA)
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33
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Dicker KT, Moore AC, Garabedian NT, Zhang H, Scinto SL, Akins RE, Burris DL, Fox JM, Jia X. Spatial Patterning of Molecular Cues and Vascular Cells in Fully Integrated Hydrogel Channels via Interfacial Bioorthogonal Cross-Linking. ACS Appl Mater Interfaces 2019; 11:16402-16411. [PMID: 30998317 PMCID: PMC6506358 DOI: 10.1021/acsami.9b04383] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Fully integrated hydrogel channels were fabricated via interfacial bioorthogonal cross-linking, a diffusion-controlled method for the creation and patterning of synthetic matrices based on the rapid bioorthogonal reaction between s-tetrazines (Tz) and trans-cyclooctene (TCO) dienophiles. Injecting an aqueous solution of a bisTCO cross-linker into a reservoir of tetrazine-modified hyaluronic acid (HA-Tz), while simultaneously drawing the syringe needle through the reservoir, yielded a cross-linked hydrogel channel that was mechanically robust. Fluorescent tags and biochemical signals were spatially patterned into the channel wall through time-dependent perfusion of TCO-conjugated molecules into the lumen of the channel. Different cell populations were spatially encapsulated in the channel wall via temporal alteration of cells in the HA-Tz reservoir. The interfacial approach enabled the spatial patterning of vascular cells, including human abdominal aorta endothelial cells, aortic vascular smooth muscle cells, and aortic adventitial fibroblasts, into the hydrogel channels with high viability and proper morphology in the anatomical order found in human arteries. The bioorthogonal platform does not rely on external triggers and represents the first step toward the engineering of functional and implantable arteries.
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Affiliation(s)
- Kevin T. Dicker
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Axel C. Moore
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19716, USA
| | | | - Han Zhang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Samuel L. Scinto
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Robert E. Akins
- Department of Biomedical Research, A.I. DuPont Hospital for Children, Nemours Children’s Clinic, Wilmington, DE 19803, USA
| | - David L. Burris
- Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA
| | - Joseph M. Fox
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
- Corresponding authors: ,
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19716, USA
- Corresponding authors: ,
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Zarganes-Tzitzikas T, Clemente GS, Elsinga PH, Dömling A. MCR Scaffolds Get Hotter with 18F-Labeling. Molecules 2019; 24:molecules24071327. [PMID: 30987302 PMCID: PMC6480256 DOI: 10.3390/molecules24071327] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 03/30/2019] [Accepted: 04/02/2019] [Indexed: 01/05/2023] Open
Abstract
Imaging techniques, such as positron emission tomography (PET), represent great progress in the clinical development of drugs and diagnostics. However, the efficient and timely synthesis of appropriately labeled compounds is a largely unsolved problem. Numerous small drug-like molecules with high structural diversity can be synthesized via convergent multicomponent reactions (MCRs). The combination of PET labeling with MCR synthesis of biologically active compounds can greatly simplify radioanalytical and imaging-based analysis. In a proof-of-concept study, we optimized robust on-site radiolabeling conditions that were subsequently applied to several structurally different drug-like MCR scaffolds (e.g., arenes, β-lactam, tetrazole, and oxazole). These labeled scaffolds were synthesized via pinacol-derived aryl boronic esters (arylBPin) by copper-mediated oxidative 18F-fluorination with radiochemical conversions (RCCs) from 15% to 76%.
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Affiliation(s)
- Tryfon Zarganes-Tzitzikas
- Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV Groningen, The Netherlands.
| | - Gonçalo S Clemente
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - Philip H Elsinga
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - Alexander Dömling
- Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV Groningen, The Netherlands.
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35
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Sharma S, Kozek KA, Abney KK, Kumar S, Gautam N, Alnouti Y, David Weaver C, Hopkins CR. Discovery, synthesis and characterization of a series of (1-alkyl-3-methyl-1H-pyrazol-5-yl)-2-(5-aryl-2H-tetrazol-2-yl)acetamides as novel GIRK1/2 potassium channel activators. Bioorg Med Chem Lett 2019; 29:791-796. [PMID: 30718161 PMCID: PMC6398930 DOI: 10.1016/j.bmcl.2019.01.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 12/22/2022]
Abstract
The present study describes the discovery and characterization of a series of 5-aryl-2H-tetrazol-3-ylacetamides as G protein-gated inwardly-rectifying potassium (GIRK) channels activators. Working from an initial hit discovered during a high-throughput screening campaign, we identified a tetrazole scaffold that shifts away from the previously reported urea-based scaffolds while remaining effective GIRK1/2 channel activators. In addition, we evaluated the compounds in Tier 1 DMPK assays and have identified a (3-methyl-1H-pyrazol-1-yl)tetrahydrothiophene-1,1-dioxide head group that imparts interesting and unexpected microsomal stability compared to previously-reported pyrazole head groups.
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Affiliation(s)
- Swagat Sharma
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-6125, USA
| | - Krystian A Kozek
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA; Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Kristopher K Abney
- School of Graduate Studies and Research, Meharry Medical College, Nashville, TN 37208, USA
| | - Sushil Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-6125, USA
| | - Nagsen Gautam
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-6125, USA
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-6125, USA
| | - C David Weaver
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA; Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Corey R Hopkins
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-6125, USA.
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36
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Abstract
Tetrazole derivatives are a prime class of heterocycles, very important to medicinal chemistry and drug design due to not only their bioisosterism to carboxylic acid and amide moieties but also to their metabolic stability and other beneficial physicochemical properties. Although more than 20 FDA-approved drugs contain 1 H- or 2 H-tetrazole substituents, their exact binding mode, structural biology, 3D conformations, and in general their chemical behavior is not fully understood. Importantly, multicomponent reaction (MCR) chemistry offers convergent access to multiple tetrazole scaffolds providing the three important elements of novelty, diversity, and complexity, yet MCR pathways to tetrazoles are far from completely explored. Here, we review the use of multicomponent reactions for the preparation of substituted tetrazole derivatives. We highlight specific applications and general trends holding therein and discuss synthetic approaches and their value by analyzing scope and limitations, and also enlighten their receptor binding mode. Finally, we estimated the prospects of further research in this field.
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Affiliation(s)
- Constantinos G. Neochoritis
- Drug Design Group, Department of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9700 AD Groningen, The Netherlands
| | - Ting Zhao
- Drug Design Group, Department of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9700 AD Groningen, The Netherlands
| | - Alexander Dömling
- Drug Design Group, Department of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9700 AD Groningen, The Netherlands
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Kulkarni RA, Briney CA, Crooks DR, Bergholtz SE, Mushti C, Lockett SJ, Lane AN, Fan TWM, Swenson RE, Linehan WM, Meier JL. Photoinducible Oncometabolite Detection. Chembiochem 2019; 20:360-365. [PMID: 30358041 PMCID: PMC8141106 DOI: 10.1002/cbic.201800651] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Indexed: 12/14/2022]
Abstract
Dysregulated metabolism can fuel cancer by altering the production of bioenergetic building blocks and directly stimulating oncogenic gene-expression programs. However, relatively few optical methods for the direct study of metabolites in cells exist. To address this need and facilitate new approaches to cancer treatment and diagnosis, herein we report an optimized chemical approach to detect the oncometabolite fumarate. Our strategy employs diaryl tetrazoles as cell-permeable photoinducible precursors to nitrileimines. Uncaging these species in cells and cell extracts enables them to undergo 1,3-dipolar cycloadditions with endogenous dipolarophile metabolites such as fumarate to form pyrazoline cycloadducts that can be readily detected by their intrinsic fluorescence. The ability to photolytically uncage diaryl tetrazoles provides greatly improved sensitivity relative to previous methods, and enables the facile detection of dysregulated fumarate metabolism through biochemical activity assays, intracellular imaging, and flow cytometry. Our studies showcase an intersection of bioorthogonal chemistry and metabolite reactivity that can be applied for biological profiling, imaging, and diagnostics.
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Affiliation(s)
| | - Chloe A. Briney
- Chemical Biology Laboratory, National Cancer Institute, NIH, Frederick MD, 21702, USA
| | - Daniel R. Crooks
- Urologic Oncology Branch, National Cancer Institute, NIH, Bethesda, MD, 20817, USA
| | - Sarah E. Bergholtz
- Chemical Biology Laboratory, National Cancer Institute, NIH, Frederick MD, 21702, USA
| | - Chandrasekhar Mushti
- Imaging Probe Development Center, National Heart Lung and Blood Institute, National Institutes of Health, Rockville, MD 20850, USA
| | - Stephen J. Lockett
- Optical Microscopy and Analysis Laboratory, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc., Frederick, MD 21702, USA
| | - Andrew N. Lane
- Center for Environmental and Systems Biochemistry, Department of Toxicology and Cancer Biology, and Markey Cancer Center, University of Kentucky, Lexington, KY, 40536, USA
| | - Teresa W-M. Fan
- Center for Environmental and Systems Biochemistry, Department of Toxicology and Cancer Biology, and Markey Cancer Center, University of Kentucky, Lexington, KY, 40536, USA
| | - Rolf E. Swenson
- Imaging Probe Development Center, National Heart Lung and Blood Institute, National Institutes of Health, Rockville, MD 20850, USA
| | - W. Marston Linehan
- Urologic Oncology Branch, National Cancer Institute, NIH, Bethesda, MD, 20817, USA
| | - Jordan L. Meier
- Chemical Biology Laboratory, National Cancer Institute, NIH, Frederick MD, 21702, USA
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Garba J, Samsuri AW, Othman R, Ahmad Hamdani MS. Adsorption-desorption and leaching potential of glyphosate and aminomethylphosphonic acid in acidic Malaysian soil amended with cow dung and rice husk ash. Environ Monit Assess 2018; 190:676. [PMID: 30368595 DOI: 10.1007/s10661-018-7034-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
This study investigates adsorption-desorption and the leaching potential of glyphosate and aminomethylphosphonic acid (AMPA) in control and amended-addition of cow dung or rice husk ash-acidic Malaysian soil with high oxide mineral content. The addition of cow dung or rice husk ash increased the adsorptive removal of AMPA. The isotherm data of glyphosate and AMPA best fitted the Freundlich model. The constant Kf for glyphosate was high in the control soil (544.873 mg g-1) followed by soil with cow dung (482.451 mg g-1) then soil with rice husk ash (418.539 mg g-1). However, for AMPA, soil with cow dung was high (166.636 mg g-1) followed by soil with rice husk ash (137.570 mg g-1) then the control soil (48.446 mg g-1). The 1/n values for both glyphosate and AMPA adsorptions were < 1 indicating their strong affinity for adsorbents. Desorption of both glyphosate and AMPA occurred only in the control soil. The compounds were not detected in soils with added cow dung or rice husk ash. The addition of cow dung or rice husk ash increased glyphosate mobility. However, ground water ubiquity scores for both control and amended soils were < 2.8. This indicated glyphosate is a transitional herbicide; therefore, its leaching potential in the soil is low, despite the addition of cow dung or rice husk ash. Addition of these wastes decreased the mobility and leaching potential of AMPA. The addition of cow dung or rice husk ash could be beneficial in increasing adsorption and enhancing degradation of these compounds.
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Affiliation(s)
- Jamilu Garba
- Department of Agricultural Education, Zamfara State College of Education, Maru, Zamfara, 1002, Nigeria.
| | - Abd Wahid Samsuri
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
| | - Radziah Othman
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
| | - Muhammad Saiful Ahmad Hamdani
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
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Capurro P, Moni L, Galatini A, Mang C, Basso A. Multi-Gram Synthesis of Enantiopure 1,5-Disubstituted Tetrazoles Via Ugi-Azide 3-Component Reaction. Molecules 2018; 23:molecules23112758. [PMID: 30366358 PMCID: PMC6278549 DOI: 10.3390/molecules23112758] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/19/2018] [Accepted: 10/22/2018] [Indexed: 01/08/2023] Open
Abstract
Tetrazoles have been widely studied for their biological properties. An efficient route for large-scale synthesis of 1,5-disubstituted tetrazoles (1,5-DTs) is presented. The strategy exploits a reductive approach to synthetize a cyclic chiral imine substrate which is then converted into the target product through an Ugi-azide three-component reaction (UA-3CR). The final products are equipped with additional functionalities which can be further elaborated for the generation of combinatorial libraries of enantiopure heterocycles.
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Affiliation(s)
- Pietro Capurro
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy.
| | - Lisa Moni
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy.
| | - Andrea Galatini
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy.
| | - Christian Mang
- AnalytiCon Discovery GmbH, Hermannswerder Haus 17, 14473 Potsdam, Germany.
| | - Andrea Basso
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy.
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Szulczyk D, Dobrowolski MA, Roszkowski P, Bielenica A, Stefańska J, Koliński M, Kmiecik S, Jóźwiak M, Wrzosek M, Olejarz W, Struga M. Design and synthesis of novel 1H-tetrazol-5-amine based potent antimicrobial agents: DNA topoisomerase IV and gyrase affinity evaluation supported by molecular docking studies. Eur J Med Chem 2018; 156:631-640. [PMID: 30031974 DOI: 10.1016/j.ejmech.2018.07.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 07/11/2018] [Accepted: 07/15/2018] [Indexed: 12/27/2022]
Abstract
A total of 14 of 1,5-disubstituted tetrazole derivatives were prepared by reacting appropriate thiourea and sodium azide in the presence of mercury (II) chloride and triethylamine. All compounds were evaluated in vitro for their antimicrobial activity. Derivatives 10 and 11 showed the highest inhibition against Gram-positive and Gram-negative strains (standard and hospital strains). The observed minimal inhibitory concentrations values were in the range of 1-208 μM (0.25-64 μg/ml). Inhibitory activity of 1,5-tetrazole derivatives 10 and 11 against gyrase and topoisomerase IV isolated from S. aureus was studied. Evaluation was supported by molecular docking studies for all synthesized derivatives and reference ciprofloxacin. Moreover, selected tetrazoles (2, 3, 5, 6, 8, 9, 10 and 11) were evaluated for their cytotoxicity. All tested compounds are non-cytotoxic against HaCaT and A549 cells (CC50 ≤ 60 μM).
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Affiliation(s)
- Daniel Szulczyk
- Chair and Department of Biochemistry, Medical University, 02-097 Warszawa, Poland.
| | | | - Piotr Roszkowski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Anna Bielenica
- Chair and Department of Biochemistry, Medical University, 02-097 Warszawa, Poland
| | - Joanna Stefańska
- Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland; Department of Pharmaceutical Microbiology, Medical University, 02-007 Warszawa, Poland
| | - Michał Koliński
- Bioinformatics Laboratory, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Sebastian Kmiecik
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, 02-089 Warsaw, Poland
| | - Michał Jóźwiak
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warszawa, Poland; Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland; Department of Biochemistry, Second Faculty of Medicine, Medical University of Warsaw, 02-097 Warszawa, Poland
| | - Małgorzata Wrzosek
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warszawa, Poland; Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Wioletta Olejarz
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warszawa, Poland; Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Marta Struga
- Chair and Department of Biochemistry, Medical University, 02-097 Warszawa, Poland; Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
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41
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Choi JH, Oh D, Kim IS, Kim HS, Kim M, Kim EM, Lim ST, Sohn MH, Kim DH, Jeong HJ. Light-Triggered Radiochemical Synthesis: A Novel 18F-Labelling Strategy Using Photoinducible Click Reaction to Prepare PET Imaging Probes. Contrast Media Mol Imaging 2018; 2018:4617493. [PMID: 30046295 PMCID: PMC6036826 DOI: 10.1155/2018/4617493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 04/25/2018] [Accepted: 05/07/2018] [Indexed: 11/29/2022]
Abstract
Novel probe development for positron emission tomography (PET) is leading to expanding the scope of molecular imaging. To begin responding to challenges, several biomaterials such as natural products and small molecules, peptides, engineered proteins including affibodies, and antibodies have been used in the development of targeted molecular imaging probes. To prepare radiotracers, a few bioactive materials are unique challenges to radiolabelling because of their complex structure, poor stability, poor solubility in aqueous or chemical organic solutions, and sensitivity to temperature and nonphysiological pH. To overcome these challenges, we developed a new radiolabelling strategy based on photoactivated 1,3-dipolar cycloaddition between alkene dipolarophile and tetrazole moiety containing compounds. Herein, we describe a light-triggered radiochemical synthesis via photoactivated click reaction to prepare 18F-radiolabelled PET tracers using small molecular and RGD peptide.
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Affiliation(s)
- Ji Hae Choi
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Doori Oh
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - In Sun Kim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Hyeon-Soo Kim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Minjoo Kim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Eun-Mi Kim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Dong Hyun Kim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Kaibiotech, 20 Geonji-ro, Deokjin-gu, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Chonbuk National University Medical School and Hospital, Jeonju, Jeollabuk-do 54896, Republic of Korea
- Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Hospital, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
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42
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Yuan J, Duan J, Saint CP, Mulcahy D. Removal of glyphosate and aminomethylphosphonic acid from synthetic water by nanofiltration. Environ Technol 2018; 39:1384-1392. [PMID: 28488926 DOI: 10.1080/09593330.2017.1329356] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 05/07/2017] [Indexed: 06/07/2023]
Abstract
The removal of glyphosate and aminomethylphosphonic acid (AMPA) with synthetic water was carried out on a lab-scale nanofiltration unit using two membranes, NFX and NFW. The presence of humic acid and some inorganic matters (CaCl2 and NaCl) was tested in the experiment. The results demonstrate that NFX exhibits better separation performance than NFW. The herbicide filtration is found to have little effect on the permeate flux as compared to transmembrane pressure. Intermediate concentrations of NaCl act positively on foulant separation, and an increment of 3.3-5.4 percentage points in foulant rejection is obtained with the addition of 100 mg/L of NaCl. In Contrast, CaCl2 has negative effect on foulant separation during nanofiltration. Humic acid alone shows little influence on the rejection performance, whereas it is slightly improved in the coexistence of humic acid and CaCl2. The nanofiltration technology proves to be a good approach to treat the problem of pesticide micropollution in a one-step process. This work clearly shows that the composition of the water matrices may influence the efficiency of the nanofiltration process in terms of the separation of the micropollutants.
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Affiliation(s)
- Jiang Yuan
- a Key Laboratory of Northwest Water Resources, Environment and Ecology, MOE, School of Environmental and Municipal Engineering , Xi'an University of Architecture and Technology , Xi'an , People's Republic of China
- c Present address: Architectural Engineering Institute , Xinjiang University , Xinjiang , People's Republic of China
| | - Jinming Duan
- a Key Laboratory of Northwest Water Resources, Environment and Ecology, MOE, School of Environmental and Municipal Engineering , Xi'an University of Architecture and Technology , Xi'an , People's Republic of China
- b Natural and Built Environments Research Centre, School of Natural and Built Environments , University of South Australia , Adelaide , South Australia , Australia
| | - Christopher P Saint
- b Natural and Built Environments Research Centre, School of Natural and Built Environments , University of South Australia , Adelaide , South Australia , Australia
| | - Dennis Mulcahy
- b Natural and Built Environments Research Centre, School of Natural and Built Environments , University of South Australia , Adelaide , South Australia , Australia
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43
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Xie S, Wong AYH, Kwok RTK, Li Y, Su H, Lam JWY, Chen S, Tang BZ. Fluorogenic Ag + -Tetrazolate Aggregation Enables Efficient Fluorescent Biological Silver Staining. Angew Chem Int Ed Engl 2018; 57:5750-5753. [PMID: 29575702 PMCID: PMC5969303 DOI: 10.1002/anie.201801653] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Indexed: 01/08/2023]
Abstract
Silver staining, which exploits the special bioaffinity and the chromogenic reduction of silver ions, is an indispensable visualization method in biology. It is a most popular method for in-gel protein detection. However, it is limited by run-to-run variability, background staining, inability for protein quantification, and limited compatibility with mass spectroscopic (MS) analysis; limitations that are largely attributed to the tricky chromogenic visualization. Herein, we reported a novel water-soluble fluorogenic Ag+ probe, the sensing mechanism of which is based on an aggregation-induced emission (AIE) process driven by tetrazolate-Ag+ interactions. The fluorogenic sensing can substitute the chromogenic reaction, leading to a new fluorescence silver staining method. This new staining method offers sensitive detection of total proteins in polyacrylamide gels with a broad linear dynamic range and robust operations that rival the silver nitrate stain and the best fluorescent stains.
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Affiliation(s)
- Sheng Xie
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute of Molecular Functional MaterialsState Key Laboratory of NeuroscienceDivision of Biomedical Engineering, and Division of Life Science.The Hong Kong University of Science and TechnologyKowloonHong KongChina
- Ming Wai Lau Centre for Reparative MedicineKarolinska InstitutetHong KongChina
| | - Alex Y. H. Wong
- Ming Wai Lau Centre for Reparative MedicineKarolinska InstitutetHong KongChina
| | - Ryan T. K. Kwok
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute of Molecular Functional MaterialsState Key Laboratory of NeuroscienceDivision of Biomedical Engineering, and Division of Life Science.The Hong Kong University of Science and TechnologyKowloonHong KongChina
| | - Ying Li
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute of Molecular Functional MaterialsState Key Laboratory of NeuroscienceDivision of Biomedical Engineering, and Division of Life Science.The Hong Kong University of Science and TechnologyKowloonHong KongChina
| | - Huifang Su
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute of Molecular Functional MaterialsState Key Laboratory of NeuroscienceDivision of Biomedical Engineering, and Division of Life Science.The Hong Kong University of Science and TechnologyKowloonHong KongChina
| | - Jacky W. Y. Lam
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute of Molecular Functional MaterialsState Key Laboratory of NeuroscienceDivision of Biomedical Engineering, and Division of Life Science.The Hong Kong University of Science and TechnologyKowloonHong KongChina
| | - Sijie Chen
- Ming Wai Lau Centre for Reparative MedicineKarolinska InstitutetHong KongChina
| | - Ben Zhong Tang
- Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute of Molecular Functional MaterialsState Key Laboratory of NeuroscienceDivision of Biomedical Engineering, and Division of Life Science.The Hong Kong University of Science and TechnologyKowloonHong KongChina
- Guangdong Provincial Key Laboratory of Brain ScienceDisease and Drug DevelopmentHKUST-Shenzhen Research InstituteNanshanShenzhenChina
- Guangdong Innovative Research Team, SCUT-HKUST Joint Research LaboratoryState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhouChina
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44
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Maleki A, Rahimi J, Demchuk OM, Wilczewska AZ, Jasiński R. Green in water sonochemical synthesis of tetrazolopyrimidine derivatives by a novel core-shell magnetic nanostructure catalyst. Ultrason Sonochem 2018; 43:262-271. [PMID: 29555283 DOI: 10.1016/j.ultsonch.2017.12.047] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 12/26/2017] [Accepted: 12/27/2017] [Indexed: 05/09/2023]
Abstract
A green approach for the one-pot four-component sonochemical synthesis of 5-methyl-7-aryl-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylic esters from the reaction of 2-cyano-guanidine, sodium azide, various aromatic aldehydes and methyl or ethyl acetoacetate in the presence of a catalytic amount of Fe2O3@SiO2-(CH2)3NHC(O)(CH2)2PPh2 as a new hybrid organic-inorganic core-shell nanomagnetic catalyst is described. This is the first design, preparation, characterization and application of the present nanomaterial and also the first ultrasound irradiated synthesis of the biologically and pharmaceutically important heterocyclic compounds in water as a green solvent. This novel sonocatalysis/nanocatalysis protocol offers several advantages such as high yields, short reaction times, environmentally-friendly reaction media, easily isolation of the products, simple preparation, full characterization and recoverability of the nanocatalyst by an external magnet and reusing several times without significant loss of activity.
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Affiliation(s)
- Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran.
| | - Jamal Rahimi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Oleg M Demchuk
- Department of Organic Chemistry, Maria Curie-Sklodowska University, Gliniana 33, Lublin 20-614, Poland
| | - Agnieszka Z Wilczewska
- Institute of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Radomir Jasiński
- Institute of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, Cracow, Poland
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Abstract
Purification of extracts from Prangos haussknechtii Bioss afforded prenylated coumarins 1 and 2, monoterpenoid 3, amino acid derivative 4, and seven known compounds. Spectroscopic methods permitted establishment of the structures and relative configuration of these compounds. The pure isolates were tested for antioxidant and anti-inflammatory activities using lipid peroxidation (LPO), 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT), and cyclooxygenase (COX-1 and -2) enzyme inhibitory assays. Compounds 1-4 inhibited LPO with IC50 values between 43 and 114 μM and reduced MTT to formazan blue between 48 and 128 μM. In anti-inflammatory assays using cyclooxygenase enzymes, COX-1 and -2, these compounds showed inhibition, with IC50 values ranging from 34 to 56 μM.
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Affiliation(s)
- Amila A Dissanayake
- Bioactive Natural Products and Phytoceuticals Laboratory, Department of Horticulture, Michigan State University , East Lansing, Michigan 48824, United States
| | - Baram A H Ameen
- Department of Science, Charmo University , 46023 Chamchamal-Sualimani, Kurdistan Region, Iraq
| | - Muraleedharan G Nair
- Bioactive Natural Products and Phytoceuticals Laboratory, Department of Horticulture, Michigan State University , East Lansing, Michigan 48824, United States
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46
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Gujarati NA, Zeng L, Gupta P, Chen ZS, Korlipara VL. Design, synthesis and biological evaluation of benzamide and phenyltetrazole derivatives with amide and urea linkers as BCRP inhibitors. Bioorg Med Chem Lett 2017; 27:4698-4704. [PMID: 28916341 DOI: 10.1016/j.bmcl.2017.09.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/01/2017] [Accepted: 09/02/2017] [Indexed: 12/18/2022]
Abstract
Breast cancer resistant protein (BCRP/ABCG2), a 72kDa plasma membrane transporter protein is a member of ABC transporter superfamily. Increased expression of BCRP causes increased efflux and therefore, reduced intracellular accumulation of many unrelated chemotherapeutic agents leading to multidrug resistance (MDR). A series of 31 benzamide and phenyltetrazole derivatives with amide and urea linkers has been synthesized to serve as potential BCRP inhibitors in order to overcome BCRP-mediated MDR. The target derivatives were tested for their cytotoxicity and reversal effects in human non-small cell lung cancer cell line H460 and mitoxantrone resistant cell line H460/MX20 using the MTT assay. In the benzamide series, compounds 6 and 7 exhibited a fold resistance of 1.51 and 1.62, respectively at 10µM concentration which is similar to that of FTC, a known BCRP inhibitor. Compounds 27 and 31 were the most potent analogues in the phenyltetrazole series with amide linker with a fold resistance of 1.39 and 1.32, respectively at 10µM concentration. For the phenyltetrazole series with urea linker, 38 exhibited a fold resistance of 1.51 which is similar than that of FTC and is the most potent compound in this series. The target compounds did not exhibit reversal effect in P-gp overexpressing resistant cell line SW620/Ad300 suggesting that they are selective BCRP inhibitors.
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Affiliation(s)
- Nehaben A Gujarati
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, United States
| | - Leli Zeng
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, United States
| | - Pranav Gupta
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, United States
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, United States
| | - Vijaya L Korlipara
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, United States.
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47
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Peng M, Li S, Wu J, Guo Y, Cao S, Zhao Y. Fragmentation studies of sartans by electrospray ionization mass spectrometry. J Mass Spectrom 2017; 52:591-596. [PMID: 28677141 DOI: 10.1002/jms.3965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/19/2017] [Accepted: 06/28/2017] [Indexed: 06/07/2023]
Abstract
Sartans and related analogues with 5-oxo-l, 2, 4-oxadiazole ring and tetrazole ring are investigated in detail using collision-induced dissociation (CID) method in positive ion mode by electrospray ionization tandem mass spectrometry (ESI-MSn ). It is found that the protonated sartans and related analogues tend to form the N-substituted-3-substituted phenanthridin-6-amine ion which has a large conjugative structure. The possible fragmentation pathways were proposed for the first time, and the key structure of product ions was confirmed by high resolution tandem mass spectrometry and theoretical calculation. It is very helpful for understanding the intriguing roles of sartans analogues in fragmentation reactions and enriching the knowledge of the gas-phase chemistry of the oxadiazole and tetrazole ring. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- M Peng
- The College of Chemistry and Molecular Engineering, The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, China
| | - S Li
- The College of Chemistry and Molecular Engineering, The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, China
| | - J Wu
- Zhengzhou Central Hospital Affiliated to Zhengzhou University, No. 195 Tongbai Road, Zhengzhou, 450007, China
| | - Y Guo
- The College of Chemistry and Molecular Engineering, The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, China
| | - S Cao
- The College of Chemistry and Molecular Engineering, The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, China
| | - Y Zhao
- The College of Chemistry and Molecular Engineering, The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, China
- Department of Chemistry, College of Chemistry and Chemical Engineering, The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, China
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48
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Kakio T, Yoshida N, Macha S, Moriguchi K, Hiroshima T, Ikeda Y, Tsuboi H, Kimura K. Classification and Visualization of Physical and Chemical Properties of Falsified Medicines with Handheld Raman Spectroscopy and X-Ray Computed Tomography. Am J Trop Med Hyg 2017; 97:684-689. [PMID: 28722604 PMCID: PMC5590587 DOI: 10.4269/ajtmh.16-0971] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 05/09/2017] [Indexed: 11/07/2022] Open
Abstract
Analytical methods for the detection of substandard and falsified medical products (SFs) are important for public health and patient safety. Research to understand how the physical and chemical properties of SFs can be most effectively applied to distinguish the SFs from authentic products has not yet been investigated enough. Here, we investigated the usefulness of two analytical methods, handheld Raman spectroscopy (handheld Raman) and X-ray computed tomography (X-ray CT), for detecting SFs among oral solid antihypertensive pharmaceutical products containing candesartan cilexetil as an active pharmaceutical ingredient (API). X-ray CT visualized at least two different types of falsified tablets, one containing many cracks and voids and the other containing aggregates with high electron density, such as from the presence of the heavy elements. Generic products that purported to contain equivalent amounts of API to the authentic products were discriminated from the authentic products by the handheld Raman and the different physical structure on X-ray CT. Approach to investigate both the chemical and physical properties with handheld Raman and X-ray CT, respectively, promise the accurate discrimination of the SFs, even if their visual appearance is similar with authentic products. We present a decision tree for investigating the authenticity of samples purporting to be authentic commercial tablets. Our results indicate that the combination approach of visual observation, handheld Raman and X-ray CT is a powerful strategy for nondestructive discrimination of suspect samples.
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Affiliation(s)
- Tomoko Kakio
- Analytical Development, Pharmaceutical Sciences, Takeda Pharmaceutical Company, Ltd., Osaka, Japan
| | - Naoko Yoshida
- Drug Management and Policy, Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Susan Macha
- Global Product Protection, Takeda Pharmaceuticals U.S.A., Inc., Deerfield, Illinois
| | - Kazunobu Moriguchi
- Analytical Development, Pharmaceutical Sciences, Takeda Pharmaceutical Company, Ltd., Osaka, Japan
| | - Takashi Hiroshima
- Analytical Development, Pharmaceutical Sciences, Takeda Pharmaceutical Company, Ltd., Osaka, Japan
| | - Yukihiro Ikeda
- Analytical Development, Pharmaceutical Sciences, Takeda Pharmaceutical Company, Ltd., Osaka, Japan
| | - Hirohito Tsuboi
- Drug Management and Policy, Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Kazuko Kimura
- Drug Management and Policy, Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
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49
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Takeda R, Kobayashi I, Shimamura K, Ishimura H, Kadoya R, Kawai K, Kittaka A, Takimoto-Kamimura M, Kurita N. Specific interactions between vitamin-D receptor and its ligands: Ab initio molecular orbital calculations in water. J Steroid Biochem Mol Biol 2017; 171:75-79. [PMID: 28242261 DOI: 10.1016/j.jsbmb.2017.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/07/2017] [Accepted: 02/23/2017] [Indexed: 10/20/2022]
Abstract
Vitamin D is recognized to play important roles not only in the bone metabolism and the regulation of Ca amount in the blood but also in the onset of immunological diseases. These physiological actions caused by vitamin D are triggered by the specific interaction between vitamin D receptor (VDR) and vitamin D. In the present study, we investigated the interactions between VDR and vitamin D derivatives using ab initio molecular simulation, in order to elucidate the reason for the significant difference in their effects on VDR activity. Based on the results simulated, we elucidated which parts of the derivatives and which residues of VDR mainly contribute to the specific binding between VDR and the derivatives at an electronic level. This finding will be helpful for proposing new vitamin D derivatives as a potent modulator or inhibitor against VDR.
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Affiliation(s)
- Ryosuke Takeda
- Department of Computer Science and Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Ittetsu Kobayashi
- Department of Computer Science and Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Kanako Shimamura
- Department of Computer Science and Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Hiromi Ishimura
- Department of Computer Science and Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Ryushi Kadoya
- Department of Computer Science and Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Kentaro Kawai
- Drug Research Center, Kaken Pharmaceutical Co. Ltd, 14, Shinomiya, Minamigawara-cho, Yamashina-ku, Kyoto 607-8042, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan
| | - Midori Takimoto-Kamimura
- Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd, 4-3-2 Asahigaoka, Hino, Tokyo 191-8512, Japan
| | - Noriyuki Kurita
- Department of Computer Science and Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan.
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50
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Silva Elipe MV, Yoo C, Xia F, Simiens J, Crossley K, Huckins JR, Guo HX, Tedrow J, Wong-Moon K. Isolation and structure elucidation of unexpected in-process impurities during tetrazole ring formation of an investigational drug substance. Magn Reson Chem 2017; 55:253-262. [PMID: 26841697 DOI: 10.1002/mrc.4413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 12/16/2015] [Accepted: 01/07/2016] [Indexed: 06/05/2023]
Abstract
During the formation of a tetrazole ring on an investigational drug, two in-process impurities were detected and analyzed by LC-MS, which suggested that both impurities were drug-related with the same mass-to-charge ratio. To understand and control their formation, both impurities were isolated from the mother liquor of the reaction using a multi-step isolation procedure to obtain a sufficient amount for high-resolution mass spectrometry (HRMS) and NMR structural analysis. HRMS suggested a protonated mass of 577.32 Da for both impurities; however, MS fragmentation patterns provided limited information on their structures. NMR analysis indicated the presence on an additional NH functional group in both isolates with similar spatial and bond correlations to one of the dimethylcarbamoyl moieties and the corresponding aromatic ring. A phenyldimethylcarbamoylamino moiety was supported by the NMR and HRMS data and could be explained based on the 'Schmidt-like' reaction mechanism, which was an unexpected reaction pathway. Because the reaction conditions were fixed because of safety concerns, the crystallization protocol was redesigned to reduce the levels of these impurities significantly. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
| | - Chul Yoo
- Currently at St. Jude Medical, Sylmar, CA, USA
| | - Fang Xia
- Currently at ASK-Gene Pharma, Inc., Camarillo, CA, USA
| | - Jason Simiens
- Currently at Kythera Biopharmaceuticals, Westlake Village, CA, USA
| | - Kevin Crossley
- Department of Attribute Sciences, Amgen Inc., Thousand Oaks, CA, USA
| | - John R Huckins
- Department of Attribute Sciences, Amgen Inc., Thousand Oaks, CA, USA
| | - Hong-Xun Guo
- Currently at Gilead Sciences, Foster City, CA, USA
| | - Jason Tedrow
- Department of Attribute Sciences, Amgen Inc., Thousand Oaks, CA, USA
| | - Kirby Wong-Moon
- Currently at Kythera Biopharmaceuticals, Westlake Village, CA, USA
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