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Ranganatha VL, Ramu R, V R, Martiz RM, Khanum SA. Synthesis, characterization, and antimicrobial analysis of 5-phenyl-4-((2-(piperazin-1-yl)ethyl)thio)-1,2,3-oxadiazole analogs through in vitro and in silico approach. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Wang A, Xu S, Chai Y, Xia G, Wang B, Lv K, Wang D, Qin X, Jiang B, Wu W, Liu M, Lu Y. Design, synthesis and biological evaluation of nitrofuran-1,3,4-oxadiazole hybrids as new antitubercular agents. Bioorg Med Chem 2022; 53:116529. [PMID: 34861474 DOI: 10.1016/j.bmc.2021.116529] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/30/2021] [Accepted: 11/19/2021] [Indexed: 12/25/2022]
Abstract
Three series of novel nitrofuran-1,3,4-oxadiazole hybrids were designed and synthesized as new anti-TB agents. The structure activity relationship study indicated that the linkers and the substituents on the oxadiazole moiety greatly influence the activity, and the substituted benzenes are more favoured than the cycloalkyl or heterocyclic groups. Besides, the optimal compound in series 2 was active against both MTB H37Rv strain and MDR-MTB 16883 clinical isolate and also displayed low cytotoxicity, low inhibition of hERG and good oral PK, indicating its promising potential to be a lead for further structural modifications.
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Affiliation(s)
- Apeng Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shijie Xu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yun Chai
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Guimin Xia
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Bin Wang
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital College of Pharmacy, Medical University, Beijing 100149, China
| | - Kai Lv
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Dan Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaoyu Qin
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Bin Jiang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; Hebei Medical University, Shijiazhuang 050017, China
| | - Wenhao Wu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; Hebei Medical University, Shijiazhuang 050017, China
| | - Mingliang Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Yu Lu
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital College of Pharmacy, Medical University, Beijing 100149, China.
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Bashir B, Shahid W, Ashraf M, Saleem M, Aziz-Ur-Rehman, Muzaffar S, Imran M, Amjad H, Bhattarai K, Riaz N. Identification of phenylcarbamoylazinane-1,3,4-oxadiazole amides as lipoxygenase inhibitors with expression analysis and in silico studies. Bioorg Chem 2021; 115:105243. [PMID: 34403937 DOI: 10.1016/j.bioorg.2021.105243] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/16/2021] [Accepted: 08/02/2021] [Indexed: 12/26/2022]
Abstract
In search for new anti-inflammatory agents that inhibit the enzymes of arachidonic acid pathway as the drug targets, the present article describes the screening of 1,3,4-oxadiazole analogues against lipoxygenase (LOX) enzyme. The work is based on the synthesis of new N-alkyl/aralky/aryl derivatives (6a-o) of 2-(4-phenyl-5-(1-phenylcarbamoylpiperidine)-4H-1,3,4-oxadiazol-3-ylthio)acetamide which were obtained by the reaction of 1,3,4-oxadiazole (3) with various electrophiles (5a-o), in KOH. The synthesized analogues showed potent to moderate inhibitory activity against the soybean 15-LOX enzyme; especially 6g, 6b, 6a and 6l displayed the potent inhibitory potential with IC50 values 7.15 ± 0.26, 9.32 ± 0.42, 15.83 ± 0.45 & 18.37 ± 0.53 µM, respectively, while excellent to moderate inhibitory profiles with IC50 values in the range of 26.13-98.21 µM were observed from the compounds 6k, 6m, 6j, 6o, 6h, 6f, 6n and 6c. Most of the active compounds exhibited considerable cell viability against blood mononuclear cells (MNCs) at 0.25 mM by MTT assay except 6f, 6h, 6k and 6m which showed around 50% cell viability. Flow cytometry studies of the selected compounds 6a, 6j and 6n revealed that these caused 79.5-88.51% early apoptotic changes in MNCs compared with 4.26% for control quercetin at their respective IC50 values. The relative expression of 5-LOX gene was monitored in MNCs after treatment with these three molecules and all down-regulated the enzyme activity. In silico ADME and molecular docking studies further supported these studies of oxadiazole derivatives and considered it as potential 'lead' compounds in drug discovery and development.
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Affiliation(s)
- Bushra Bashir
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Wardah Shahid
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Ashraf
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
| | - Muhammad Saleem
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Aziz-Ur-Rehman
- Department of Chemistry, Government College University Lahore, Lahore 54000, Pakistan
| | - Saima Muzaffar
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Imran
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Hira Amjad
- Department of Chemistry, Government College University Lahore, Lahore 54000, Pakistan
| | - Keshab Bhattarai
- Department of Pharmaceutical Biology, Auf der Morgenstelle 8, 72076, University of Tuebingen, Tuebingen, Germany
| | - Naheed Riaz
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
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Cavalier JF, Spilling CD, Durand T, Camoin L, Canaan S. Lipolytic enzymes inhibitors: A new way for antibacterial drugs discovery. Eur J Med Chem 2020; 209:112908. [PMID: 33071055 DOI: 10.1016/j.ejmech.2020.112908] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 10/23/2022]
Abstract
Tuberculosis (TB) caused by Mycobacterium tuberculosis (M. tb) still remains the deadliest infectious disease worldwide with 1.5 million deaths in 2018, of which about 15% are attributed to resistant strains. Another significant example is Mycobacterium abscessus (M. abscessus), a nontuberculous mycobacteria (NTM) responsible for cutaneous and pulmonary infections, representing up to 95% of NTM infections in cystic fibrosis (CF) patients. M. abscessus is a new clinically relevant pathogen and is considered one of the most drug-resistant mycobacteria for which standardized chemotherapeutic regimens are still lacking. Together the emergence of M. tb and M. abscessus multi-drug resistant strains with ineffective and expensive therapeutics, have paved the way to the development of new classes of anti-mycobacterial agents offering additional therapeutic options. In this context, specific inhibitors of mycobacterial lipolytic enzymes represent novel and promising antibacterial molecules to address this challenging issue. The results highlighted here include a complete overview of the antibacterial activities, either in broth medium or inside infected macrophages, of two families of promising and potent anti-mycobacterial multi-target agents, i.e. oxadiazolone-core compounds (OX) and Cyclophostin & Cyclipostins analogs (CyC); the identification and biochemical validation of their effective targets (e.g., the antigen 85 complex and TesA playing key roles in mycolic acid metabolism) together with their respective crystal structures. To our knowledge, these are the first families of compounds able to target and impair replicating as well as intracellular bacteria. We are still impelled in deciphering their mode of action and finding new potential therapeutic targets against mycobacterial-related diseases.
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Affiliation(s)
- Jean-François Cavalier
- Aix-Marseille Univ., CNRS, LISM, Institut de Microbiologie de La Méditerranée FR3479, Marseille, France.
| | - Christopher D Spilling
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri, 63121, United States
| | - Thierry Durand
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Luc Camoin
- Aix-Marseille Univ., INSERM, CNRS, Institut Paoli-Calmettes, CRCM, Marseille Protéomique, Marseille, France
| | - Stéphane Canaan
- Aix-Marseille Univ., CNRS, LISM, Institut de Microbiologie de La Méditerranée FR3479, Marseille, France.
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Shaykoon MS, Marzouk AA, Soltan OM, Wanas AS, Radwan MM, Gouda AM, Youssif BGM, Abdel-Aziz M. Design, synthesis and antitrypanosomal activity of heteroaryl-based 1,2,4-triazole and 1,3,4-oxadiazole derivatives. Bioorg Chem 2020; 100:103933. [PMID: 32446119 DOI: 10.1016/j.bioorg.2020.103933] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/10/2020] [Accepted: 05/11/2020] [Indexed: 10/24/2022]
Abstract
Two series of novel 1,2,4-triazol-3-yl-thioacetamide 3a-b and 4a-b and 5-pyrazin-2-yl-3H-[1,3,4]oxadiazole-2-thiones 9a-h were designed and synthesized. The compounds prepared have been identified using 1H NMR, 13C NMR and elemental analyses. The synthesized compounds 3a, 3b, 4a, 4b, 9a, 9b, 9d-e and 9f have been evaluated with α-difluoromethylornithine (DFMO) as a control drug for their in vitro antitrypanosomal activity against Trypanosoma brucei. Results showed that 3b was the most active compound in general and also more potent than control DFMO. 3b was 8 folds more potent than the reference with IC50 of 0.79 μM and IC90 of 1.35 μM, respectively compared to DFMO (IC50 = 6.10 μM and IC90 of 8.66 μM). The tested compounds showed moderate cytotoxicity with selectivity indices ranging from 12 (9d) to 102 (3b) against L6 cells. Docking study was performed into ten of T. brucei enzymes which have been identified as potential/valid targets for most of the antitrypanosomal agents. The results of the docking study revealed high binding scores toward many of the selected enzymes. A good correlation was observed only between log (IC50) of antitrypanosomal activity of the new compounds and their calculated Ki values against TryR enzyme (R2 = 0.726). Compound 3b, the most active as antitrypanosomal agents exhibited similar binding orientation and interaction to those of WP6 against TryR enzyme. However, in a next round of work, a complementary studies will be carried out to clarify the mechanism of action of these compounds.
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Affiliation(s)
- Montaser Sh Shaykoon
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Adel A Marzouk
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Osama M Soltan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Amira S Wanas
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA; Pharmacognosy Department, Faculty of Pharmacy, Minia University, 61519 Minia, Egypt
| | - Mohamed M Radwan
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA
| | - Ahmed M Gouda
- Department of Medicinal Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Bahaa G M Youssif
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.
| | - Mohamed Abdel-Aziz
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, 61519 Minia, Egypt.
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Multitargeting Compounds: A Promising Strategy to Overcome Multi-Drug Resistant Tuberculosis. Molecules 2020; 25:molecules25051239. [PMID: 32182964 PMCID: PMC7179463 DOI: 10.3390/molecules25051239] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 02/28/2020] [Accepted: 03/08/2020] [Indexed: 12/18/2022] Open
Abstract
Tuberculosis is still an urgent global health problem, mainly due to the spread of multi-drug resistant M. tuberculosis strains, which lead to the need of new more efficient drugs. A strategy to overcome the problem of the resistance insurgence could be the polypharmacology approach, to develop single molecules that act on different targets. Polypharmacology could have features that make it an approach more effective than the classical polypharmacy, in which different drugs with high affinity for one target are taken together. Firstly, for a compound that has multiple targets, the probability of development of resistance should be considerably reduced. Moreover, such compounds should have higher efficacy, and could show synergic effects. Lastly, the use of a single molecule should be conceivably associated with a lower risk of side effects, and problems of drug–drug interaction. Indeed, the multitargeting approach for the development of novel antitubercular drugs have gained great interest in recent years. This review article aims to provide an overview of the most recent and promising multitargeting antitubercular drug candidates.
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El-Mansy M, Ghosh A, Cheong PHY, Carter R. Regioselective lithiation of benzyl imidazole: Synthesis and evaluation of new organocatalysts for trans-diol functionalization. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1655766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Mohamed El-Mansy
- Chemistry Department, Oregon State University, Corvallis, OR, USA
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Ankan Ghosh
- Chemistry Department, Oregon State University, Corvallis, OR, USA
| | | | - Rich Carter
- Chemistry Department, Oregon State University, Corvallis, OR, USA
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8
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Yang N, Yuan G. One-pot synthesis of 1,3,4-oxadiazol-2(3H)-ones with CO 2 as a C1 synthon promoted by hypoiodite. Org Biomol Chem 2019; 17:6639-6644. [PMID: 31243402 DOI: 10.1039/c9ob01200a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A convenient and efficient route has been developed to synthesize 1,3,4-oxadiazol-2(3H)-ones from CO2, hydrazines and aryl or aliphatic aldehydes. Promoted by hypoiodite (IO-) generated in situ from KI and oxidant TBHP, the one-pot synthesis could proceed smoothly to afford the desired products in moderate to high yields. Mechanism studies revealed that nitrile imine was an important intermediate in this transformation. Notably, a commercial herbicide Oxadiazon could be successfully synthesized by this route.
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Affiliation(s)
- Na Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P.R. China.
| | - Gaoqing Yuan
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P.R. China.
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9
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Yang N, Zhang H, Yuan G. KI-catalyzed reactions of aryl hydrazines with α-oxocarboxylic acids in the presence of CO2: access to 1,3,4-oxadiazol-2(3H)-ones. Org Chem Front 2019. [DOI: 10.1039/c8qo01345d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel KI-catalyzed synthesis of 1,3,4-oxadiazol-2(3H)-ones from aryl hydrazines, α-oxocarboxylic acids and CO2 was reported.
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Affiliation(s)
- Na Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P.R. China
| | - Hao Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P.R. China
| | - Gaoqing Yuan
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P.R. China
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Alrazzak NA. Synthesis, characterization and study some of physical properties of novel 1,3,4-oxadiazole derivatives. IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING 2018; 454:012096. [DOI: 10.1088/1757-899x/454/1/012096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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11
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Oxadiazolone derivatives, new promising multi-target inhibitors against M. tuberculosis. Bioorg Chem 2018; 81:414-424. [PMID: 30212765 DOI: 10.1016/j.bioorg.2018.08.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/17/2018] [Accepted: 08/20/2018] [Indexed: 11/22/2022]
Abstract
A set of 19 oxadiazolone (OX) derivatives have been investigated for their antimycobacterial activity against two pathogenic slow-growing mycobacteria, Mycobacterium marinum and Mycobacterium bovis BCG, and the avirulent Mycobacterium tuberculosis (M. tb) mc26230. The encouraging minimal inhibitory concentrations (MIC) values obtained prompted us to test them against virulent M. tb H37Rv growth either in broth medium or inside macrophages. The OX compounds displayed a diversity of action and were found to act either on extracellular M. tb growth only with moderated MIC50, or both intracellularly on infected macrophages as well as extracellularly on bacterial growth. Of interest, all OX derivatives exhibited very low toxicity towards host macrophages. Among the six potential OXs identified, HPOX, a selective inhibitor of extracellular M. tb growth, was selected and further used in a competitive labelling/enrichment assay against the activity-based probe Desthiobiotin-FP, in order to identify its putative target(s). This approach, combined with mass spectrometry, identified 18 potential candidates, all being serine or cysteine enzymes involved in M. tb lipid metabolism and/or in cell wall biosynthesis. Among them, Ag85A, CaeA, TesA, KasA and MetA have been reported as essential for in vitro growth of M. tb and/or its survival and persistence inside macrophages. Overall, our findings support the assumption that OX derivatives may represent a novel class of multi-target inhibitors leading to the arrest of M. tb growth through a cumulative inhibition of a large number of Ser- and Cys-containing enzymes involved in various important physiological processes.
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Raghi K, Sherin D, Saumya M, Arun P, Sobha V, Manojkumar T. Computational study of molecular electrostatic potential, docking and dynamics simulations of gallic acid derivatives as ABL inhibitors. Comput Biol Chem 2018; 74:239-246. [DOI: 10.1016/j.compbiolchem.2018.04.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/23/2018] [Accepted: 04/04/2018] [Indexed: 12/17/2022]
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13
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New lipophilic isoniazid derivatives and their 1,3,4-oxadiazole analogues: Synthesis, antimycobacterial activity and investigation of their mechanism of action. Eur J Med Chem 2018; 151:824-835. [PMID: 29679902 DOI: 10.1016/j.ejmech.2018.04.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/27/2018] [Accepted: 04/08/2018] [Indexed: 01/31/2023]
Abstract
The development of novel drugs is essential for the treatment of tuberculosis and other mycobacterial infections in future. A series of N-alkyl-2-isonicotinoylhydrazine-1-carboxamides was synthesized from isoniazid (INH) and then cyclized to N-alkyl-5-(pyridin-4-yl)-1,3,4-oxadiazole-2-amines. All derivatives were characterised spectroscopically. The compounds were screened for their in vitro antimycobacterial activity against susceptible and multidrug-resistant Mycobacterium tuberculosis (Mtb.) and nontuberculous mycobacteria (NTM; M. avium, M. kansasii). The most active carboxamides were substituted by a short n-alkyl, their activity was comparable to INH with minimum inhibitory concentrations (MICs) against Mtb. of 0.5-2 μM. Moreover, they are non-toxic for HepG2, and some of them are highly active against INH-resistant NTM (MICs ≥4 μM). Their cyclization to 1,3,4-oxadiazoles did not increase the activity. The experimentally proved mechanism of action of 2-isonicotinoylhydrazine-1-carboxamides consists of the inhibition of enoyl-ACP reductase (InhA) in a way similar to INH, which is blocking the biosynthesis of mycolic acids. N-Dodecyl-5-(pyridin-4-yl)-1,3,4-oxadiazol-2-amine as the most efficacious oxadiazole inhibits growth of both susceptible and drug-resistant Mtb. strains with uniform MIC values of 4-8 μM with no cross-resistance to antitubercular drugs including INH. The mechanism of action is not elucidated but it is different from INH. Obtained results qualify these promising derivatives for further investigation.
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Wang C, Fan Y, Yao Y, Chen W, Cui X, Zhu G, Zhou W, Tang L. Base-Promoted Substitution Reaction: A Simple, Economical, and Efficient Method for Obtaining 3-Sulfenylated Benzo[ b
]furan Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201702142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Cong Wang
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants; Guizhou Medcial University; Guiyang 550014, Guizhou, P. R. China
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D; Guizhou Medical University; Guiyang 550004, Guizhou, P. R. China
| | - Yuxin Fan
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants; Guizhou Medcial University; Guiyang 550014, Guizhou, P. R. China
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D; Guizhou Medical University; Guiyang 550004, Guizhou, P. R. China
| | - Yaoyao Yao
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
| | - Wenzhang Chen
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
| | - Xing Cui
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
| | - Gaofeng Zhu
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
| | - Wei Zhou
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
| | - Lei Tang
- School of Pharmacy; Guizhou Medical University; Guiyang 550025, Guizhou, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants; Guizhou Medcial University; Guiyang 550014, Guizhou, P. R. China
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D; Guizhou Medical University; Guiyang 550004, Guizhou, P. R. China
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15
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Guo CX, Zhang WZ, Zhang N, Lu XB. 1,3-Dipolar Cycloaddition of Nitrile Imine with Carbon Dioxide: Access to 1,3,4-Oxadiazole-2(3H)-ones. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b00963] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chun-Xiao Guo
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Wen-Zhen Zhang
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Ning Zhang
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
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16
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El Azab IH, Elkanzi NAA. Synthesis and Pharmacological Evaluation of Some New Chromeno[3,4- c]pyrrole-3,4-dione-based N-Heterocycles as Antimicrobial Agents. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2721] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Islam H. El Azab
- Chemistry Department, Faculty of Science; Taif University; Al-Haweiah, P.O. Box 888 Taif 21974 Saudi Arabia
- Chemistry Department, Faculty of Science; Aswan University; P.O. Box 81528 Aswan Egypt
| | - Nadia A. A. Elkanzi
- Chemistry Department, Faculty of Science; Aswan University; P.O. Box 81528 Aswan Egypt
- Chemistry Department, Faculty of Science; Aljouf University; P.O. Box 2014 Aljouf Saudi Arabia
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17
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Khalilullah H, Khan S, Nomani MS, Ahmed B. Synthesis, characterization and antimicrobial activity of benzodioxane ring containing 1,3,4-oxadiazole derivatives. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2011.11.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Ashok D, Vanaja B. Synthesis and anticancer activity evaluation of (E)-3-{[5-(aryl)-1,3,4-oxadiazol-2-yl]methyl}-5-(3,4,5-trimethoxybenzylidene)thiazolidine-2,4-diones. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216030270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jafari A, Ramazani A, Sadri F, Joo SW. One-pot, three-component reaction ofN-isocyanimino-triphenylphosphorane (Ph3PNNC), acenaphthoquinone, and an aromatic carboxylic acid in water. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2015.1054933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ali Jafari
- Department of Chemistry, University of Zanjan, Zanjan, Islamic Republic of Iran
| | - Ali Ramazani
- Department of Chemistry, University of Zanjan, Zanjan, Islamic Republic of Iran
| | - Fariba Sadri
- Department of Chemistry, Payame Noor University, Tehran, Islamic Republic of Iran
| | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, Republic of Korea
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Jadhav GR, Deshmukh DG, Medhane VJ, Gaikwad VB, Bholay AD. 2,5-Disubstituted 1,3,4-oxadiazole derivatives of chromeno[4,3-b]pyridine: synthesis and study of antimicrobial potency. HETEROCYCL COMMUN 2016. [DOI: 10.1515/hc-2015-0215] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractA convenient synthesis of 1,3,4-oxadiazole containing derivatives of chromeno[4,3-
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Jafari A, Ramazani A, Asiabi PA, Sadri F, Joo SW. N-Isocyanimino-Triphenylphosphorane (Ph3Pnnc) as an Efficient Reagent for the Preparation of Fully Substituted 1,3,4-Oxadiazoles via Intramolecular Aza-Wittig Reaction in Water. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2015.1054486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ali Jafari
- Department of Chemistry, University of Zanjan,, Zanjan, Iran
| | - Ali Ramazani
- Department of Chemistry, University of Zanjan,, Zanjan, Iran
| | | | - Fariba Sadri
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea
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Sarshira EM, Hamada NM, Moghazi YM, Abdelrahman MM. Synthesis and Biological Evaluation of Some Heterocyclic Compounds from Salicylic Acid Hydrazide. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2516] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- E. M. Sarshira
- Department of Chemistry, Faculty of Science; Alexandria University; Alexandria 21321 Egypt
| | - N. M. Hamada
- Department of Chemistry, Faculty of Education; Alexandria University; Alexandria 21526 Egypt
| | - Y. M. Moghazi
- Department of Chemistry, Faculty of Education; Alexandria University; Alexandria 21526 Egypt
| | - M. M. Abdelrahman
- Department of Chemistry, Faculty of Science; Alexandria University; Alexandria 21321 Egypt
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El Ashry ESH, Boraei ATA, Duerkop A. Synthesis and Regioselectivity in the Alkylation of 1,3,4-Oxadiazolethiones with Dihaloalkanes and Epichlorohydrin. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- El Sayed H. El Ashry
- Chemistry Department, Faculty of Science; Alexandria University; Alexandria Egypt
| | - Ahmed T. A. Boraei
- Chemistry Department, Faculty of Science; Suez Canal University; Ismailia Egypt
| | - Axel Duerkop
- Institute of Analytical Chemistry, Chemo and Biosensors; University of Regensburg; Universitätsstrasse 31 Regensburg 93053 Germany
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Ashraf Z, Rafiq M, Seo SY, Babar MM, Zaidi NUSS. Synthesis, kinetic mechanism and docking studies of vanillin derivatives as inhibitors of mushroom tyrosinase. Bioorg Med Chem 2015. [PMID: 26204890 DOI: 10.1016/j.bmc.2015.06.068] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The purpose of the present study was to discover the extent of contribution to antityrosinase activity by adding hydroxy substituted benzoic acid, cinnamic acid and piperazine residues to vanillin. The study showed the transformation of vanillin into esters as shown in (4a-4d), (6a-6b), and (8a-8b). In addition, the relationship between structures of these esters and their mushroom tyrosinase inhibitory activity was explored. The kinetics of inhibition on mushroom tyrosinase by these esters was also investigated. It was found that hydroxyl substituted benzoic acid derivatives were weak inhibitors; however hydroxy or chloro substituted cinnamic acid and piperazine substituted derivatives were able to induce significant tyrosinase inhibition. The mushroom tyrosinase (PDBID 2ZWE) was docked with synthesized vanillin derivatives and their calculated binding energies were compared with experimental IC50 values which provided positive correlation. The most potent derivative 2-(4-formyl-2-methoxyphenoxy)-2-oxoethyl (2E)-3-(4-hydroxyphenyl)prop-2-enoate (6a) possesses hydroxy substituted cinnamic acid scaffold having IC50 value 16.13 μM with binding energy of -7.2 kcal/mol. The tyrosinase inhibitory activity of (6a) is comparable with standard kojic acid. Kinetic analysis indicated that compound 6a was mixed-type tyrosinase inhibitor with inhibition constant values Ki (13 μM) and Ki' (53 μM) and formed reversible enzyme inhibitor complex. The active vanillin analog (6a) was devoid of toxic effects as shown in cytotoxic studies.
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Affiliation(s)
- Zaman Ashraf
- Department of Biology, College of Natural Sciences, Kongju National University, Gongju 314-701, Republic of Korea; Department of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Muhammad Rafiq
- Department of Biology, College of Natural Sciences, Kongju National University, Gongju 314-701, Republic of Korea
| | - Sung-Yum Seo
- Department of Biology, College of Natural Sciences, Kongju National University, Gongju 314-701, Republic of Korea.
| | - Mustafeez Mujtaba Babar
- Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, H-12, Kashmir Highway, Islamabad 44000, Pakistan
| | - Najam-us-Sahar Sadaf Zaidi
- Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, H-12, Kashmir Highway, Islamabad 44000, Pakistan
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Ashraf Z, Rafiq M, Seo SY, Kwon KS, Babar MM, Zaidi NUSS. Kinetic and in silico studies of novel hydroxy-based thymol analogues as inhibitors of mushroom tyrosinase. Eur J Med Chem 2015; 98:203-11. [PMID: 26025140 DOI: 10.1016/j.ejmech.2015.05.031] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 04/30/2015] [Accepted: 05/20/2015] [Indexed: 12/31/2022]
Abstract
The present studies reports the synthesis of hydoxylated thymol analogues (4a-e) and (6a-c) as mushroom tyrosinase inhibitors. The title compounds were obtained in good yield and characterized by FTIR, (1)H NMR, (13)C NMR, Mass spectral data and X-ray crystallography in case of compound (6a). The inhibitory effects on mushroom tyrosinase and DPPH were evaluated and it was observed that 2-[5-methyl-2-(propan-2-yl)phenoxy]-2-oxoethyl (2E)-3-(4-hydroxyphenyl)prop-2-enoate (6b) showed tyrosinase inhibitory activity (IC50 15.20 μM) comparable to kojic acid (IC50 16.69 μM) while 2-[5-methyl-2-(propan-2-yl)phenoxy]-2-oxoethyl 3,4-dihydroxybenzoate (4d) exhibited higher antioxidant potential (IC50 11.30 μM) than standard ascorbic acid (IC50 24.20 μM). The docking studies of synthesized thymol analogues was also performed against tyrosinase protein (PDBID 2ZMX) to compare the binding affinities with IC50 values. The predicted binding affinities are in good agreement with the IC50 values as compound (6b) showed highest binding affinity -7.1 kcal/mol. The kinetic mechanism analyzed by Lineweaver-Burk plots exhibited that compound (4d) and (6b) inhibit the enzyme by two different pathways displayed mixed-type inhibition. The inhibition constants Ki calculated from Dixon plots for compounds (4d) and (6b) are 34 μM and 25 μM respectively. It was also found from kinetic analysis that derivative (6b) formed reversible enzyme inhibitor complex. It is propose on the basis of our investigation that title compound (6b) may serve as lead structure for the design of more potent tyrosinase inhibitors.
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Affiliation(s)
- Zaman Ashraf
- Department of Biology, College of Natural Sciences, Kongju National University, Gongju 314-701, Republic of Korea; Department of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Muhammad Rafiq
- Department of Biology, College of Natural Sciences, Kongju National University, Gongju 314-701, Republic of Korea
| | - Sung-Yum Seo
- Department of Biology, College of Natural Sciences, Kongju National University, Gongju 314-701, Republic of Korea.
| | - Kang Sung Kwon
- Department of Chemistry, Chungnam National University Daejeon, 305-764, Republic of Korea
| | - Mustafeez Mujtaba Babar
- Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, H-12, Kashmir Highway, Islamabad, 44000, Pakistan
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Mata-Espinosa D, Molina-Salinas GM, Barrios-Payán J, Navarrete-Vázquez G, Marquina B, Ramos-Espinosa O, Bini EI, Baeza I, Hernández-Pando R. Therapeutic efficacy of liposomes containing 4-(5-pentadecyl-1,3,4-oxadiazol-2-yl)pyridine in a murine model of progressive pulmonary tuberculosis. Pulm Pharmacol Ther 2015; 32:7-14. [PMID: 25843004 DOI: 10.1016/j.pupt.2015.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/17/2015] [Accepted: 03/18/2015] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND OBJECTIVES Tuberculosis (TB) is one of the deadliest infectious diseases and comprises a global public health concern because co-infection with Human immunodeficiency virus (HIV) and, in particular, the continuous isolation of new Multidrug-resistant strains (MDR), rendering the discovery of novel anti-TB agents a strategic priority. One of the most effective first-line mycobactericidal drugs is Isoniazid (INH). Previously, we reported in vitro anti-mycobacterial activity against sensitive and MDR Mycobacterium tuberculosis strains of a new oxadiazole obtained from the hybridization of INH and palmitic acid. The present study evaluated the therapeutic potential of liposomes including Phosphatidylcholine (PC) and L-α Phosphatidic acid (PA) or PC and Cholesterol (Chol) containing 4-(5-pentadecyl-1,3,4-oxadiazol-2-yl)pyridine in BALB/c male mice infected by intratracheal (i.t.) route with drug-sensitive or MDR M. tuberculosis. METHODS The lipophilic 4-(5-pentadecyl-1,3,4-oxadiazol-2-yl)pyridine was obtained to mix INH and palmitoyl chloride. The in vivo anti-TB effect of this oxadiazole derivative contained in two different liposomes was tested in BALB/c mice infected with a sensitive strain of M. tuberculosis, initiating treatment 2 months post-infection, by i.t. route, of 50 μg of oxadiazole derivative for 1 month. In a second stage, mice were infected with an MDR (resistant to first-line drugs) and treated with 150 μg of an oxadiazole derivative carried by PC + Chol liposomes for 2 months. The effect of the oxadiazole derivative in vivo was determined by the quantification of lung bacilli loads and histopathology. RESULTS In comparison with control animals, drug-sensitive, strain-infected mice treated for 1 month with 50 μg of this oxadiazole derivative contained in the liposomes of PC + Chol showed a significant, 80% decrease of live bacilli in lungs, which correlated with the morphometric observation, and the group of MDR clinical isolate-infected mice treated with 150 μg of the oxadiazole derivative contained in the same type of liposome showed significantly lower lung bacillary loads than control mice, producing 90% of bacilli burden reduction after 2 months of treatment. CONCLUSION These results confirm and extend the reported highly efficient anti-mycobacterial activity of this lipophilic oxidazole derivative when it is carried by liposomes in mice suffering from late progressive pulmonary TB induced by drug-sensitive, and most prominently by, MDR strains.
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Affiliation(s)
- Dulce Mata-Espinosa
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Col. Vasco de Quiroga No. 15, Delegación Tlalpan, 14080 México, D.F., Mexico.
| | - Gloria María Molina-Salinas
- Unidad de Investigación Médica Yucatán, Unidad Médica de Alta Especialidad (UMAE), Centro Médico Nacional Lic. Ignacio García Téllez, Instituto Mexicano del Seguro Social (IMSS), Calle 41 No. 439, x 32 y 34, Col. Industrial, 97150 Mérida, Yucatán, Mexico.
| | - Jorge Barrios-Payán
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Col. Vasco de Quiroga No. 15, Delegación Tlalpan, 14080 México, D.F., Mexico.
| | - Gabriel Navarrete-Vázquez
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos (UAEM), Av. Universidad No. 1001, Col. Chamilpa, 62209 Cuernavaca, Morelos, Mexico.
| | - Brenda Marquina
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Col. Vasco de Quiroga No. 15, Delegación Tlalpan, 14080 México, D.F., Mexico.
| | - Octavio Ramos-Espinosa
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Col. Vasco de Quiroga No. 15, Delegación Tlalpan, 14080 México, D.F., Mexico.
| | - Estela Isabel Bini
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Col. Vasco de Quiroga No. 15, Delegación Tlalpan, 14080 México, D.F., Mexico.
| | - Isabel Baeza
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (INP), Prolongación de Carpio y Plan de Ayala S/N, Col. Santo Tomás, Delegación Miguel Hidalgo, 11349 México, D.F., Mexico.
| | - Rogelio Hernández-Pando
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Col. Vasco de Quiroga No. 15, Delegación Tlalpan, 14080 México, D.F., Mexico.
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Roman G. Mannich bases in medicinal chemistry and drug design. Eur J Med Chem 2015; 89:743-816. [PMID: 25462280 PMCID: PMC7115492 DOI: 10.1016/j.ejmech.2014.10.076] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/22/2014] [Accepted: 10/23/2014] [Indexed: 01/18/2023]
Abstract
The biological activity of Mannich bases, a structurally heterogeneous class of chemical compounds that are generated from various substrates through the introduction of an aminomethyl function by means of the Mannich reaction, is surveyed, with emphasis on the relationship between structure and biological activity. The review covers extensively the literature reports that have disclosed Mannich bases as anticancer and cytotoxic agents, or compounds with potential antibacterial and antifungal activity in the last decade. The most relevant studies on the activity of Mannich bases as antimycobacterial agents, antimalarials, or antiviral candidates have been included as well. The review contains also a thorough coverage of anticonvulsant, anti-inflammatory, analgesic and antioxidant activities of Mannich bases. In addition, several minor biological activities of Mannich bases, such as their ability to regulate blood pressure or inhibit platelet aggregation, their antiparasitic and anti-ulcer effects, as well as their use as agents for the treatment of mental disorders have been presented. The review gives in the end a brief overview of the potential of Mannich bases as inhibitors of various enzymes or ligands for several receptors.
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Affiliation(s)
- Gheorghe Roman
- Petru Poni Institute of Macromolecular Chemistry, Department of Inorganic Polymers, 41A Aleea Gr. Ghica Vodă, Iaşi 700487, Romania.
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Burcu Arslan N, Özdemir N, Dayan O, Dege N, Koparır M, Koparır P, Muğlu H. Direct and solvent-assisted thione–thiol tautomerism in 5-(thiophen-2-yl)-1,3,4-oxadiazole-2(3H)-thione: Experimental and molecular modeling study. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Shen S, Sun X, Liu Y, Chen B, Jin R, Ma H. Synthesis and Biological Activity of Some Novel Aryl-Substituted 1,3,4-Oxadiazole Mannich Bases Containing Pyrimidine Rings. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shengqiang Shen
- Chemical Research Institute; Northwest University; Xi'an Shaanxi 710069 China
| | - Xiaohong Sun
- Chemical Research Institute; Northwest University; Xi'an Shaanxi 710069 China
- School of Chemical Engineering; Northwest University; Xi'an Shaanxi 710069 China
| | - Yuanfa Liu
- College of Chemistry & Materials Science; Northwest University; Xi'an Shaanxi 710069 China
| | - Bang Chen
- College of Chemistry & Materials Science; Northwest University; Xi'an Shaanxi 710069 China
| | - Ruyi Jin
- School of Chemical Engineering; Northwest University; Xi'an Shaanxi 710069 China
| | - Haixia Ma
- School of Chemical Engineering; Northwest University; Xi'an Shaanxi 710069 China
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Synthesis and in vitro antibacterial activity of new oxoethylthio-1,3,4-oxadiazole derivatives. JOURNAL OF SAUDI CHEMICAL SOCIETY 2014. [DOI: 10.1016/j.jscs.2011.05.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Synthesis and biological evaluation of novel oxadiazole derivatives: A new class of thymidine phosphorylase inhibitors as potential anti-tumor agents. Bioorg Med Chem 2014; 22:1008-15. [DOI: 10.1016/j.bmc.2013.12.043] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 12/18/2013] [Accepted: 12/18/2013] [Indexed: 02/06/2023]
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Ashraf Z, Saeed A, Nadeem H. Design, synthesis and docking studies of some novel isocoumarin analogues as antimicrobial agents. RSC Adv 2014. [DOI: 10.1039/c4ra07223e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The isocoumarins have been designed and prepared by incorporating the NSAIDs to discover potential inhibitors of UDP-N-acetylmuramyl-l-alanine ligase (MurC).
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Affiliation(s)
- Zaman Ashraf
- Department of Chemistry
- Allama Iqbal Open University
- Islamabad 44000, Pakistan
- Department of Biology
- College of Natural Sciences
| | - Aamer Saeed
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad 45320, Pakistan
| | - Humaira Nadeem
- Riphah Institute of Pharmaceutical Sciences
- Riphah International University
- Islamabad, Pakistan
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Jagadeesh Prathap K, Himaja M, Mali SV, Munirajasekhar D. Synthesis of New (Pyrazol-3-yl)-1,3,4-oxadiazole Derivatives by Unexpected Aromatization During Oxidative Cyclization of 4,5-Dihydro-1H-pyrazole-3-carbohydrazones and Their Biological Activities. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1765] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - M. Himaja
- School of Advanced Sciences; VIT University; Vellore 632014 Tamil Nadu India
| | - Sunil V. Mali
- School of Advanced Sciences; VIT University; Vellore 632014 Tamil Nadu India
- Medicinal Chemistry Division; Piramal Life Sciences; Nirlon Complex, Goregaon East Mumbai 400 063 India
| | - D. Munirajasekhar
- School of Advanced Sciences; VIT University; Vellore 632014 Tamil Nadu India
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Yar MS, Siddiqui AA, Ashraf Ali M. Synthesis and Anti Tuberculostatic Activity of Novel 1,3,4-Oxadiazole Derivatives. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200700002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ma L, Xiao Y, Li C, Xie ZL, Li DD, Wang YT, Ma HT, Zhu HL, Wang MH, Ye YH. Synthesis and antioxidant activity of novel Mannich base of 1,3,4-oxadiazole derivatives possessing 1,4-benzodioxan. Bioorg Med Chem 2013; 21:6763-70. [PMID: 23993673 DOI: 10.1016/j.bmc.2013.08.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 07/31/2013] [Accepted: 08/01/2013] [Indexed: 02/06/2023]
Abstract
A new series of Mannich base of 1,3,4-oxadiazole derivatives possessing 1,4-benzodioxan (6a-6ae) were synthesized and characterized by (1)H NMR, ESI-MS and elemental analysis. The structure of 6b was further confirmed by single crystal X-ray diffraction. All these novel compounds were screened for their in vitro antioxidant activity employing 2,2'-diphenyl-1-picrylhydrazyl radical (DPPH), 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonate) cationic radical (ABTS(+)) and ferric reducing antioxidant power (FRAP) scavenging assays. Due to the combination of 1,4-benzodioxan, 1,3,4-oxadiazoles and substituted phenyl ring, most of them exhibited nice antioxidant activities. In all of these three assays mentioned above, compounds 6f and 6e showed significant radical scavenging ability comparable to the commonly used antioxidants, BHT and Trolox. Seven compounds with representative substituents or activities were selected for further assays in chemical simulation biological systems-inhibition of microsomal lipid peroxidation (LPO) and protection against 2,2'-azobis (2-amidinopropane hydrochloride) (AAPH) induced DNA strand breakage, in which, 6f and 6e were demonstrated to be of the most potent antioxidant activities.
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Affiliation(s)
- Liang Ma
- College of Plant Protection, Jiangsu Key Laboratory of Pesticide Science, Nanjing Agricultural University, Nanjing 210095, PR China
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Abdel Rahman DE. Synthesis, Quantitative Structure–Activity Relationship and Biological Evaluation of 1,3,4-Oxadiazole Derivatives Possessing Diphenylamine Moiety as Potential Anticancer Agents. Chem Pharm Bull (Tokyo) 2013; 61:151-9. [DOI: 10.1248/cpb.c12-00637] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Karpińska G, Dobrowolski JC. On constitutional isomers and tautomers of oxadiazolones and their mono- and disulfur analogues (C 2H 2N 2XY; X, Y = S, O). COMPUT THEOR CHEM 2012; 1005:35-44. [PMID: 32288988 PMCID: PMC7104208 DOI: 10.1016/j.comptc.2012.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 11/05/2012] [Accepted: 11/06/2012] [Indexed: 11/29/2022]
Abstract
The constitutional isomers and tautomers of oxadiazolones, as well as their mono- and disulfur analogues, were calculated at the B3LYP/aug-cc-pVDZ level. Four groups of 30 molecules each were considered: oxadiazolone, oxadiazolthione, thiadiazolone, and thiadiazolthione isomers. The compounds were categorized into six groups according to permutations of three heteroatoms in the five-membered ring. Additionally, each of the constitutional isomer was considered to have five tautomers conserving stable five-membered ring: two NH tautomers, two rotameric OH (or SH) forms and one CH2 tautomer. It appeared that the largest difference between oxadiazolone O and S analogues is produced by the kind of chalcogen atom in the ring, which is strained when the O atom is in the ring while much less strained when the S-atom, of much larger van der Waals radius, is built into the ring. The external chalcogen is only modifying the general energetic factors. The comparison of energetics of analogous groups of molecules with thiadiazole and oxadiazole rings is done in details as well as differences resulting from different external chalcogen atoms are discussed as well. The presence of water surrounding was mimicked with the IEF-PCM implicit water model which did not change general isomer relative stability picture, but for some special cases indicated an extra stability of the forms with external OH or SH groups. The aromaticity monitored by the structural HOMA aromaticity index shows that the systems are not additionally stabilized by pi-electron delocalization. The fair linear correlation between the aromaticity indices of oxadiazolones and oxadiazolthiones shows that the pi-electron system in the studied systems is not sensitive to change of the external chalcogen group.
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Affiliation(s)
- Grażyna Karpińska
- National Medicines Institute, 30/34 Chełmska Street, 00-725 Warsaw, Poland
| | - Jan Cz Dobrowolski
- National Medicines Institute, 30/34 Chełmska Street, 00-725 Warsaw, Poland.,Industrial Chemistry Research Institute, 8 Rydygiera-Street, 01-793 Warsaw, Poland
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Oxadiazolo pyrrolidine carboxamides as enoyl-ACP reductase inhibitors: design, synthesis and antitubercular activity screening. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0340-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Propylene oxide assisted one-pot, tandem synthesis of substituted-1,3,4-oxadiazole-2(3H)-ones in water. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Patel RV, Patel PK, Kumari P, Rajani DP, Chikhalia KH. Synthesis of benzimidazolyl-1,3,4-oxadiazol-2ylthio-N-phenyl (benzothiazolyl) acetamides as antibacterial, antifungal and antituberculosis agents. Eur J Med Chem 2012; 53:41-51. [DOI: 10.1016/j.ejmech.2012.03.033] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Revised: 03/16/2012] [Accepted: 03/16/2012] [Indexed: 10/28/2022]
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41
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Siddiqui SM, Salahuddin A, Azam A. Mannich base derivatives of 1,3,4-oxadiazole: synthesis and screening against Entamoeba histolytica. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0108-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Patel RV, Patel JK, Kumari P, Chikhalia KH. Combination of bioactive moieties with different heteroatom(s): Application of the Suzuki cross-coupling reaction. HETEROATOM CHEMISTRY 2012. [DOI: 10.1002/hc.21027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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El-Emam AA, Alrashood KA, Al-Omar MA, Al-Tamimi AMS. Synthesis and antimicrobial activity of N'-heteroarylidene-1-adamantylcarbohydrazides and (±)-2-(1-adamantyl)-4-acetyl-5-[5-(4-substituted phenyl-3-isoxazolyl)]-1,3,4-oxadiazolines. Molecules 2012; 17:3475-83. [PMID: 22426528 PMCID: PMC6268319 DOI: 10.3390/molecules17033475] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/16/2012] [Accepted: 03/06/2012] [Indexed: 11/16/2022] Open
Abstract
The reaction of adamantane-1-carbohydrazide (1) with heterocyclic aldehydes, namely 5-(4-chlorophenyl)isoxazole-3-carboxaldehyde (2a), 5-(4-methylphenyl)isoxazole-3-carboxaldehyde (2b), 5-(4-methoxyphenyl)isoxazole-3-carboxaldehyde (2c), 1H-imidazole-2-carboxaldehyde and 2-butyl-4-chloro-1H-imidazole-5-carboxaldehyde, in ethanol, yielded the corresponding N'-heteroarylidene-1-adamantylcarbohydrazides 3a, 3b, 3c, 4 and 5, respectively, in good yields. The 4-acetyl-1,3,4-oxadiazoline analogues 6a‑c were prepared in 48-55% yields by heating their corresponding N'-heteroarylidene-1-adamantylcarbohydrazides 3a-c with acetic anhydride for two hours. Compounds 3a-c, 4, 5 and 6a-c were tested for in vitro activities against a panel of Gram-positive and Gram-negative bacteria and the yeast-like pathogenic fungus Candida albicans. Compounds 4 and 5 displayed potent broad-spectrum antimicrobial activity, while compounds 3a-c showed good activity against the Gram-positive bacteria.
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Affiliation(s)
- Ali A El-Emam
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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Maccioni E, Alcaro S, Cirilli R, Vigo S, Cardia MC, Sanna ML, Meleddu R, Yanez M, Costa G, Casu L, Matyus P, Distinto S. 3-Acetyl-2,5-diaryl-2,3-dihydro-1,3,4-oxadiazoles: a new scaffold for the selective inhibition of monoamine oxidase B. J Med Chem 2011; 54:6394-8. [PMID: 21777011 DOI: 10.1021/jm2002876] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
3-Acetyl-2,5-diaryl-2,3-dihydro-1,3,4-oxadiazoles were designed, synthesized, and tested as inhibitors against human monoamine oxidase (MAO) A and B isoforms. Several compounds, obtained as racemates, were identified as selective MAO-B inhibitors. The enantiomers of some derivatives were separated by enantioselective HPLC and tested. The R-enantiomers always showed the highest activity. Docking study and molecular dynamic simulations demonstrated the putative binding mode. We conclude that these 1,3,4-oxadiazoles derivatives are promising reversible and selective MAO-B inhibitors.
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Affiliation(s)
- Elias Maccioni
- Dipartimento Farmaco Chimico Tecnologico, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
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Carta A, Briguglio I, Piras S, Boatto G, La Colla P, Loddo R, Tolomeo M, Grimaudo S, Di Cristina A, Pipitone RM, Laurini E, Paneni MS, Posocco P, Fermeglia M, Pricl S. 3-Aryl-2-[1H-benzotriazol-1-yl]acrylonitriles: a novel class of potent tubulin inhibitors. Eur J Med Chem 2011; 46:4151-67. [PMID: 21741130 DOI: 10.1016/j.ejmech.2011.06.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Revised: 06/10/2011] [Accepted: 06/11/2011] [Indexed: 11/16/2022]
Abstract
During a screening for compounds that could act against Mycobacterium tuberculosis, a series of new cellular antiproliferative agents was identified. The most cytotoxic molecules were evaluated against a panel of human cell lines derived from hematological and solid human tumors. In particular, (E)-2-(1H-benzo[d] [1,2,3]triazol-1-yl)-3-(4-methoxyphenyl)acrylonitrile (1) was found to be of a potency comparable to etoposide and greater than 6-mercaptopurine in all cell lines tested. Accordingly, a synthesis of a new series of (E)-2-(5,6-dichloro-1H-benzo[d] [1,2,3]triazol-1-yl)-3-(4-R-phenyl)acrylonitriles was conducted in order to extend the studies of structure-activity relationship (SAR) for this class of molecules. With the aim to evaluate if 3-aryl-2-[1H-benzotriazol-1-yl]acrylonitriles were able to act like tubulin binding agents, the effects on cell cycle distribution of the most active compounds (1, 2a, 3 and 4) were analyzed in K562 cells. A detailed molecular modeling study of the putative binding mode of this series of compounds on tubulin is also reported.
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Affiliation(s)
- Antonio Carta
- Dipartimento Scienze del Farmaco, Università degli Studi di Sassari, Via Muroni 23/a, 07100 Sassari, Italy.
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Bancerz M, Georges MK. Verdazyl Radicals as Substrates for Organic Synthesis: A Synthesis of 3-Methyl-5-aryl-1,3,4-oxadiazolones. J Org Chem 2011; 76:6377-82. [DOI: 10.1021/jo200820g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Matthew Bancerz
- Department of Chemical and Physical Sciences, University of Toronto at Mississauga, 3359 Mississauga Road, Mississauga, Ontario, Canada L5L 1C6
| | - Michael K. Georges
- Department of Chemical and Physical Sciences, University of Toronto at Mississauga, 3359 Mississauga Road, Mississauga, Ontario, Canada L5L 1C6
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47
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Recent advances in the design and synthesis of heterocycles as anti-tubercular agents. Future Med Chem 2011; 2:1469-500. [PMID: 21426140 DOI: 10.4155/fmc.10.227] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Due to the unusual structure and chemical composition of the mycobacterial cell wall, effective tuberculosis (TB) treatment is difficult, making many antibiotics ineffective and hindering the entry of drugs. With approximately 33% of infection, TB is still the second most deadly infectious disease worldwide. The reasons for this are drug-resistant TB (multidrug resistant and extensively drug resistant), persistent infection (latent TB) and synergism of TB with HIV; furthermore no new chemical entity has emerged in last 40 years. New data available from the recently sequenced genome of the mycobacterium and the application of methods of modern drug design promise much for the fight against this disease. In this review, we present an introduction to TB, followed by an overview of new heterocyclic anti-tubercular moieties published during the last decade.
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Reynolds RC, Ananthan S, Faaleolea E, Hobrath JV, Kwong CD, Maddox C, Rasmussen L, Sosa MI, Thammasuvimol E, White EL, Zhang W, Secrist JA. High throughput screening of a library based on kinase inhibitor scaffolds against Mycobacterium tuberculosis H37Rv. Tuberculosis (Edinb) 2011; 92:72-83. [PMID: 21708485 DOI: 10.1016/j.tube.2011.05.005] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 05/09/2011] [Accepted: 05/12/2011] [Indexed: 01/10/2023]
Abstract
Kinase targets are being pursued in a variety of diseases beyond cancer, including immune and metabolic as well as viral, parasitic, fungal and bacterial. In particular, there is a relatively recent interest in kinase and ATP-binding targets in Mycobacterium tuberculosis in order to identify inhibitors and potential drugs for essential proteins that are not targeted by current drug regimens. Herein, we report the high throughput screening results for a targeted library of approximately 26,000 compounds that was designed based on current kinase inhibitor scaffolds and known kinase binding sites. The phenotypic data presented herein may form the basis for selecting scaffolds/compounds for further enzymatic screens against specific kinase or other ATP-binding targets in Mycobacterium tuberculosis based on the apparent activity against the whole bacteria in vitro.
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Affiliation(s)
- Robert C Reynolds
- Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL 35205, USA.
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Jubie S, Prabitha P, Rajesh Kumar R, Kalirajan R, Gayathri R, Sankar S, Elango K. Design, synthesis, and docking studies of novel ofloxacin analogues as antimicrobial agents. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9655-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Effect of an Oxadiazoline and a Lignan on Mycolic Acid Biosynthesis and Ultrastructural Changes of Mycobacterium tuberculosis. Tuberc Res Treat 2011; 2011:986409. [PMID: 22567272 PMCID: PMC3335653 DOI: 10.1155/2011/986409] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 01/28/2011] [Accepted: 02/16/2011] [Indexed: 01/29/2023] Open
Abstract
Tuberculosis (TB) is an important disease that causes thousands of deaths around the world. Resistance against antitubercular available drugs has been reported; so, research on new effective antimycobacterial molecules is needed. Antimycobacterial activity of three lignans and two synthetic hydrazones was assessed against Mycobacterium tuberculosis H37Rv by antimycobacterial microdilution assay (TEMA). An oxadiazoline (AC451) and a lignan (ethoxycubebin) were the most active compounds (MIC 6.09 and 62.4 μM, resp.). Several changes in mycolic acid profile of treated bacteria were detected with both compounds by mass spectrometry analysis. Additionally, the level of reduction of mycolic acids in ethoxycubebin treatment was correlated to disruption in bacterial morphology.
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