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Laxmikeshav K, Rahman Z, Mahale A, Gurukkala Valapil D, Sharma P, George J, Phanindranath R, Dandekar MP, Kulkarni OP, Nagesh N, Shankaraiah N. Benzimidazole derivatives as tubulin polymerization inhibitors: Design, synthesis and in vitro cytotoxicity studies. Bioorg Med Chem Lett 2023; 96:129494. [PMID: 37797804 DOI: 10.1016/j.bmcl.2023.129494] [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: 06/20/2023] [Revised: 09/28/2023] [Accepted: 10/01/2023] [Indexed: 10/07/2023]
Abstract
A new class of benzimidazole derivatives as tubulin polymerization inhibitors has been designed and synthesized in this study. The in vitro anticancer profile of the developed molecules was reconnoitred on selected human cancer cells. The highest cytotoxicity was illustrated by compounds 7n and 7u with IC50 values ranging from 2.55 to 17.89 µM with specificity toward SK-Mel-28 cells. They displayed 5-fold less cytotoxicity towards normal rat kidney epithelial NRK52E cells, which implies that they are not harmful to normal, healthy cells. The cellular staining procedures like AO/EB, DCFDA, and DAPI were applied to comprehend the inherent mechanism of apoptosis which displayed nuclear and morphological alterations. The Annexin V binding and JC-1 studies were executed to evaluate the extent of apoptosis and the decline in mitochondrial transmembrane potential in SK-Mel-28 cell lines. Compound 7n dose-dependently arrested the G2/M phase of the cell cycle and the target-based outcomes proposed tubulin polymerization inhibition by 7n (IC50 of 5.05±0.13 μM). Computational studies were also conducted on the tubulin protein (PDB ID: 3E22) to investigate the stabilized binding interactions of compounds 7n and 7u with tubulin, respectively.
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Affiliation(s)
- Kritika Laxmikeshav
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Ziaur Rahman
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Ashutosh Mahale
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Durgesh Gurukkala Valapil
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Pravesh Sharma
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Joel George
- CSIR-Centre for Cellular and Molecular Biology, Medical Biotechnology Complex, ANNEXE II, Uppal Road, Hyderabad 500007, India
| | - Regur Phanindranath
- CSIR-Centre for Cellular and Molecular Biology, Medical Biotechnology Complex, ANNEXE II, Uppal Road, Hyderabad 500007, India
| | - Manoj P Dandekar
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India.
| | - Onkar P Kulkarni
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Narayana Nagesh
- CSIR-Centre for Cellular and Molecular Biology, Medical Biotechnology Complex, ANNEXE II, Uppal Road, Hyderabad 500007, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India.
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Akbar N, Siddiqui R, El-Gamal MI, Zaraei SO, Alawfi BS, Khan NA. The anti-amoebic potential of carboxamide derivatives containing sulfonyl or sulfamoyl moieties against brain-eating Naegleria fowleri. Parasitol Res 2023; 122:2539-2548. [PMID: 37665414 DOI: 10.1007/s00436-023-07953-w] [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: 05/22/2023] [Accepted: 08/18/2023] [Indexed: 09/05/2023]
Abstract
Naegleria fowleri is a free-living thermophilic flagellate amoeba that causes a rare but life-threatening infection called primary amoebic meningoencephalitis (PAM), with a very high fatality rate. Herein, the anti-amoebic potential of carboxamide derivatives possessing sulfonyl or sulfamoyl moiety was assessed against pathogenic N. fowleri using amoebicidal, cytotoxicity and cytopathogenicity assays. The results from amoebicidal experiments showed that derivatives dramatically reduced N. fowleri viability. Selected derivatives demonstrated IC50 values at lower concentrations; 1j showed IC50 at 24.65 μM, while 1k inhibited 50% amoebae growth at 23.31 μM. Compounds with significant amoebicidal effects demonstrated limited cytotoxicity against human cerebral microvascular endothelial cells. Finally, some derivatives mitigated N. fowleri-instigated host cell death. Ultimately, this study demonstrated that 1j and 1k exhibited potent anti-amoebic activity and ought to be looked at in future studies for the development of therapeutic anti-amoebic pharmaceuticals. Further investigation is required to determine the clinical relevance of our findings.
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Affiliation(s)
- Noor Akbar
- Research Institute of Medical and Health Sciences, University of Sharjah, University City, Sharjah, 27272, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, University City, Sharjah, 27272, United Arab Emirates
| | - Ruqaiyyah Siddiqui
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah, 26666, United Arab Emirates
- Microbiota Research Center, Istinye University, 34010, Istanbul, Turkey
| | - Mohammed I El-Gamal
- Research Institute of Medical and Health Sciences, University of Sharjah, University City, Sharjah, 27272, United Arab Emirates.
- Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah, 27272, United Arab Emirates.
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - Seyed-Omar Zaraei
- Research Institute of Medical and Health Sciences, University of Sharjah, University City, Sharjah, 27272, United Arab Emirates
| | - Bader S Alawfi
- Department of Medical Laboratories Technology, College of Applied Medical Sciences, Taibah University, Madinah, 42353, Saudi Arabia
| | - Naveed Ahmed Khan
- Microbiota Research Center, Istinye University, 34010, Istanbul, Turkey.
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3
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Alizadeh MH, Pooresmaeil M, Namazi H. Carboxymethyl cellulose@multi wall carbon nanotubes functionalized with Ugi reaction as a new curcumin carrier. Int J Biol Macromol 2023; 234:123778. [PMID: 36822289 DOI: 10.1016/j.ijbiomac.2023.123778] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/23/2023]
Abstract
In recent years, the fabrication of new drug delivery systems (DDSs) based on functionalization by multi-component reactions (MCRs) has received special attention. In this regard, to obtain a new oral administration system for colon-specific cancer treatment, the CMC@MWCNTs@FCA carrier was designed and prepared from the functionalization of the CMC@MWCNTs as a biocompatible raw material with carboxamide group by the Ugi reaction. FT-IR analysis confirmed the successful synthesis of the product through the change in the functional groups of reagents. Additionally, the crystalline structure and porosity of the samples were studied by XRD and BET techniques. After a detailed characterization, the curcumin (CUR) was loaded on CMC@MWCNTs and CMC@MWCNTs@FCA, respectively, about 29 % and 38 %. In vitro drug release behavior studies for CUR-loaded CMC@MWCNTs@FCA showed the controlled release for it, so 11.6 % and 76.5 % of CUR, respectively were released at pH 1.2 and pH 7.4. Toxicological analysis displayed the IC50 of CMC@MWCNTs@FCA@CUR is 752 μg/mL. In conclusion, the obtained findings display that the fabricated system can be proposed as a biocompatible carrier for specific colon cancer treatment.
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Affiliation(s)
- Mohammad Hossein Alizadeh
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Malihe Pooresmaeil
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Hassan Namazi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Science, Tabriz, Iran.
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Gill MSA, Azzman N, Hassan SS, Shah SAA, Ahemad N. A green and efficient synthetic methodology towards the synthesis of 1-allyl-6-chloro-4-oxo-1,4-dihydroquinoline-3- carboxamide derivatives. BMC Chem 2022; 16:111. [PMID: 36482476 PMCID: PMC9733071 DOI: 10.1186/s13065-022-00902-1] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/14/2022] [Indexed: 12/13/2022] Open
Abstract
Quinolone is a privileged scaffold in medicinal chemistry and 4-Quinolone-3-Carboxamides have been reported to harbor vast therapeutic potential. However, conversion of N-1 substituted 4-Quinolone 3-Carboxylate to its corresponding carbamates is highly restrictive. This motivated us to adopt a much simpler, scalable and efficient methodology for the synthesis of highly pure N-1 substituted 4- Quinolone-3-Carboxamides with excellent yields. Our adopted methodology not only provides a robust pathway for the convenient synthesis of N-1 substituted 4- Quinolone-3-Carboxamides which can then be explored for their therapeutic potential, this may also be adaptable for the derivatization of other such less reactive carboxylate species.
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Affiliation(s)
- Muhammad Shoaib Ali Gill
- grid.440425.30000 0004 1798 0746School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia ,grid.412967.f0000 0004 0609 0799Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani, Out Fall Road, Lahore, Pakistan
| | - Nursyuhada Azzman
- grid.440425.30000 0004 1798 0746School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia ,grid.412259.90000 0001 2161 1343Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Pulau Pinang Kampus Bertam, 13200 Kepala Batas, Pulau Pinang Malaysia
| | - Sharifah Syed Hassan
- grid.440425.30000 0004 1798 0746Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia
| | - Syed Adnan Ali Shah
- grid.412259.90000 0001 2161 1343Faculty of Pharmacy, Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, 42300 Bandar Puncak Alam, Selangor DE Malaysia
| | - Nafees Ahemad
- grid.440425.30000 0004 1798 0746School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia ,grid.440425.30000 0004 1798 0746Tropical Medicine and Biology Multidisciplinary Platform, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia
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Sahtel S, Maamer CB, Besbes R, Vrancken E, Campagne JM. Straightforward synthesis of various chiral pyrimidines bearing a stereogenic center adjacent to the C-2 position, including C-terminal peptide isosteres. Amino Acids 2022; 54:1519-1526. [PMID: 36229670 DOI: 10.1007/s00726-022-03192-y] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/24/2022] [Indexed: 11/30/2022]
Abstract
The present study describes an efficient access to enantioenriched pyrimidines' derivatives from readily available Boc-AA-NH2 and β-enaminones. This strategy allows the synthesis of a large variety of chiral pyrimidines (18 examples) with good yields from the chiral pool. In the case of peptide isosteres, this procedure proved to be highly stereoretentive and paves the way to the construction of C-terminal modified peptidomimetics as illustrated in the synthesis of two original pyrimidines containing pseudo-dipeptides.
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Affiliation(s)
- Sami Sahtel
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France.,Faculty of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical Chemistry and Electrochemistry, University of Tunis-El Manar, Campus Universities, 2092, Tunis El-Manar, Tunisia
| | - Chayma Ben Maamer
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France.,Faculty of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical Chemistry and Electrochemistry, University of Tunis-El Manar, Campus Universities, 2092, Tunis El-Manar, Tunisia
| | - Rafâa Besbes
- Faculty of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical Chemistry and Electrochemistry, University of Tunis-El Manar, Campus Universities, 2092, Tunis El-Manar, Tunisia
| | - Emmanuel Vrancken
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France.
| | - Jean-Marc Campagne
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France
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Egbujor MC, Okoro UC, Okafor SN, Egu SA, Amasiatu IS, Egwuatu PI, Umeh OR, Ibo EM. Design, synthesis, and molecular docking of cysteine-based sulphonamide derivatives as antimicrobial agents. Res Pharm Sci 2021; 17:99-110. [PMID: 34909048 PMCID: PMC8621839 DOI: 10.4103/1735-5362.329930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 04/14/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
Background and purpose: The preponderance of microbial infections remains a global challenge. In the present study, synthesis of novel cysteine-based antimicrobial agents and their biological evaluation is reported. Experimental approach: The reaction of p-toluenesulphonyl chloride with cysteine afforded 2-{[(4-methylphenyl)sulphonyl]amino}-3-sulphanylpropanoic acid (3) which was acetylated based on Lumiere-Barbier method using acetic anhydride. The ammonolysis of the acetylated compound (4) gave the carboxamide derivative (5) which reacted with aniline, aminopyridine and diaminopyrimidine via nickel catalyzed Buchwald-Hartwig amidation reaction to afford compounds 6a, 6b, and 6c, respectively. The compounds were characterized using FTIR, 1H-NMR, 13C-NMR, and elemental analysis. The in vitro antimicrobial activities were determined. Their physicochemical properties were generated in silico and the molecular docking studied bacterial and fungal infections. Findings/Results: Compounds 4, 6b, and 6c exhibited excellent in vitro antibacterial activities while compound 4 had the best antifungal activities. From the in silico antimicrobial results, compound 3 had a better binding affinity (-10.95 kcal/mol) than penicillin (-10.89 kcal/mol) while compounds 3 and 4 had binding affinities (-10.07 and -10.62kcal/mol) comparable to ketoconazole (-10.85 kcal/mol). Conclusion and implication: All the synthesized compounds exhibited significant antibacterial and antifungal activities and were confirmed to be potential antimicrobial agents.
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Affiliation(s)
- Melford C Egbujor
- Department of Industrial Chemistry, Renaissance University, Ugbawka, Enugu State, Nigeria
| | - Uchechukwu C Okoro
- Synthetic Organic Chemistry Division, Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Sunday N Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Samuel A Egu
- Department of Pure and Industrial Chemistry, Kogi State University, Anyigba, Kogi State, Nigeria
| | - Ifeanyi S Amasiatu
- Department of Biochemistry, Renaissance University, Ugbawka, Enugu State, Nigeria
| | - Pius I Egwuatu
- Department of Microbiology, Renaissance University, Ugbawka, Enugu State, Nigeria
| | - Odera R Umeh
- Department of Applied Microbiology and Brewing, Nnamdi Azikiwe University, P.M.B 5025 Awka, Anambra State, Nigeria
| | - Eziafakaego M Ibo
- Department of Applied Microbiology and Brewing, Nnamdi Azikiwe University, P.M.B 5025 Awka, Anambra State, Nigeria
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Yamali C, Inci Gul H, Ozli G, Angeli A, Ballar Kirmizibayrak P, Erbaykent Tepedelen B, Sakagami H, Bua S, Supuran CT. Exploring of tumor-associated carbonic anhydrase isoenzyme IX and XII inhibitory effects and cytotoxicities of the novel N-aryl-1-(4-sulfamoylphenyl)-5-(thiophen-2-yl)-1H-pyrazole-3- carboxamides. Bioorg Chem 2021; 115:105194. [PMID: 34365059 DOI: 10.1016/j.bioorg.2021.105194] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/08/2021] [Accepted: 07/17/2021] [Indexed: 11/18/2022]
Abstract
A series of novel N-aryl-1-(4-sulfamoylphenyl)-5-(thiophen-2-yl)-1H-pyrazole-3-carboxamides was synthesized and examined as inhibitors of cytosolic (human) hCA I and hCA II, and cancer-related transmembrane hCA IX and hCA XII isoenzymes. AC2 was the most selective inhibitor towards cancer-related hCA IX while AC8 and AC9 selectively inhibited hCA XII over off-target isoenzymes. Anticancer effects of the compounds were evaluated towards human oral squamous cell carcinoma (OSCC) cell lines, human mesenchymal normal oral cells, breast (MCF7), prostate (PC3), non-small cell lung carcinoma cells (A549), and non-tumoral fetal lung fibroblast cells (MRC5). Compounds moderately showed cytotoxicity towards cancer cell lines. Among others, AC6 showed cell-specific cytotoxic activity and induced apoptosis in a dose-dependent manner without a significant change in the cell cycle distribution of MCF7. These results suggest that pyrazole-3-carboxamides need further molecular modification to increase their anticancer drug candidate potency.
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Affiliation(s)
- Cem Yamali
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Cukurova University, Adana, Turkey; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey.
| | - Halise Inci Gul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey.
| | - Gulsen Ozli
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Andrea Angeli
- Neurofarba Department, Sezione di Scienza Farmaceutiche e Nutraceutiche, Universita degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
| | | | - Burcu Erbaykent Tepedelen
- Department of Molecular Biology and Genetics, Faculty of Science and Art, Uludag University, Bursa, Turkey
| | - Hiroshi Sakagami
- Research Institute of Odontology (M-RIO), Meikai University, Saitama, Japan
| | - Silvia Bua
- Neurofarba Department, Sezione di Scienza Farmaceutiche e Nutraceutiche, Universita degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
| | - Claudiu T Supuran
- Neurofarba Department, Sezione di Scienza Farmaceutiche e Nutraceutiche, Universita degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
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Volodina YL, Tikhomirov AS, Dezhenkova LG, Ramonova AA, Kononova AV, Andreeva DV, Kaluzhny DN, Schols D, Moisenovich MM, Shchekotikhin AE, Shtil AA. Thiophene-2- carboxamide derivatives of anthraquinone: A new potent antitumor chemotype. Eur J Med Chem 2021; 221:113521. [PMID: 34082225 DOI: 10.1016/j.ejmech.2021.113521] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 02/01/2023]
Abstract
The anthraquinone scaffold has long been known as a source of efficacious antitumor drugs. In particular, the various chemical modifications of the side chains in this scaffold have yielded the compounds potent for the wild type tumor cells, their counterparts with molecular determinants of altered drug response, as well as in vivo settings. Further exploring the chemotype of anticancer heteroarene-fused anthraquinones, we herein demonstrate that derivative of anthra[2,3-b]thiophene-2-carboxamide, (compound 8) is highly potent against a panel of human tumor cell lines and their drug resistant variants. Treatment with submicromolar or low micromolar concentrations of 8 for only 30 min was sufficient to trigger lethal damage of K562 chronic myelogenous leukemia cells. Compound 8 (2.5 μM, 3-6 h) induced an apoptotic cell death as determined by concomitant activation of caspases 3 and 9, cleavage of poly(ADP-ribose) polymerase, increase of Annexin V/propidium iodide double stained cells, DNA fragmentation (subG1 fraction) and a decrease of mitochondrial membrane potential. Neither a significant interaction with double stranded DNA nor strong inhibition of the DNA dependent enzyme topoisomerase 1 by 8 were detectable in cell free systems. Laser scanning confocal microscopy revealed that some amount of 8 was detectable in mitochondria as early as 5 min after the addition to the cells; exposure for 1 h caused significant morphological changes and clustering of mitochondria. The bioisosteric analog 2 in which the thiophene ring was replaced with furan was less active although the patterns of cytotoxicity of both derivatives were similar. These results point at the specific role of the sulfur atom in the antitumor properties of carboxamide derivatives of heteroarene-fused anthraquinone.
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Affiliation(s)
- Yulia L Volodina
- Blokhin Cancer Center, 24 Kashirskoye Shosse, Moscow, 115478, Russia; Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
| | | | - Lyubov G Dezhenkova
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
| | - Alla A Ramonova
- Faculty of Biology, Moscow State University, 1 Leninskie Gory, Moscow, Russia
| | - Anastasia V Kononova
- I.M. Sechenov First Moscow State Medical University, 2 B. Pirogovskaya Street Bld.4, Moscow, 119435, Russia
| | - Daria V Andreeva
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
| | - Dmitry N Kaluzhny
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov Street, 119991, Moscow, Russia
| | - Dominique Schols
- Rega Institute for Medical Research, K.U. Leuven, 3000, Leuven, Belgium
| | | | | | - Alexander A Shtil
- Blokhin Cancer Center, 24 Kashirskoye Shosse, Moscow, 115478, Russia; Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
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9
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Afzal S, Al-Rashida M, Hameed A, Pelletier J, Sévigny J, Iqbal J. Synthesis, In-vitro evaluation and molecular docking studies of oxoindolin phenylhydrazine carboxamides as potent and selective inhibitors of ectonucleoside triphosphate diphosphohydrolase (NTPDase). Bioorg Chem 2021; 112:104957. [PMID: 34020240 DOI: 10.1016/j.bioorg.2021.104957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/13/2021] [Accepted: 04/28/2021] [Indexed: 12/13/2022]
Abstract
Members of the ectonucleoside triphosphate diphosphohydrolases (NTPDases) constitute the major family of enzymes responsible for the maintenance of extracellular levels of nucleotides and nucleosides by catalyzing the hydrolysis of nucleoside triphosphate (NTP) and nucleoside diphosphates (NDP) to nucleoside monophosphate (NMP). Although, NTPDase inhibitors can act as potential drug candidates for the treatment of various diseases, there is lack of potent as well as selective inhibitors of NTPDases. The current study describes the synthesis of a number of carboxamide derivatives that were tested on recombinant human (h) NTPDases. The most promising inhibitors were 2h (h-NTPDase1, IC50: 0.12 ± 0.03 µM), 2d (h-NTPDase2, IC50: 0.15 ± 0.01 µM) and 2a (h-NTPDase3, IC50: 0.30 ± 0.04 µM; h-NTPDase8, IC50: 0.16 ± 0.02 µM). Four compounds (2e, 2f, 2g and 2h) were associated with the selective inhibition of h-NTPDase1 while 2b was identified as a selective h-NTPDase3 inhibitor. Considering the importance of NTPDase3 in the regulation of insulin release, the NTPDase3 inhibitors were further investigated to elucidate their role in the insulin release. The obtained data suggested that compound 2a was actively participating in regulating the insulin release without producing any effect on NTPDase3 mRNA. Moreover, the most potent inhibitors were docked within the active site of respective enzyme and the observed interactions were in compliance with in vitro results. Hence, these compounds can be used as pharmacological tool to further investigate the role of NTPDase3 coupled to insulin release.
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10
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Junqueira VB, Müller C, Rodrigues AA, Amaral TS, Batista PF, Silva AA, Costa AC. Do fungicides affect the physiology, reproductive development and productivity of healthy soybean plants? Pestic Biochem Physiol 2021; 172:104754. [PMID: 33518047 DOI: 10.1016/j.pestbp.2020.104754] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 11/21/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
Fungicides are widely used to control diseases in soybean crops. We hypothesized that fungicides applied to healthy soybean plants compromise the plant's physiology, affect the reproductive process and reduce crop productivity. We aimed to evaluate the photosynthetic process, pollen grain viability and yield components of soybean plants exposed to three commercial fungicides. The experiment was performed twice using soybean cultivar SYN 1378C, disease-free plants, with four treatments: i) control treatment (without any fungicide application); ii) cyproconazole 150 g L-1 + difenoconazole 250 g L-1 (CPZ + DFZ; 250 mL ha-1; without adjuvant); iii) azoxystrobin 300 g Kg-1 + benzovindiflupyr 150 g Kg-1 (AZB + BZP; 200 g ha-1; Nimbus® adjuvant (Syngenta)); and iv) propiconazole 250 g L-1 + difenoconazole 250 g L-1 (PPZ + DFZ; 150 mL ha-1; without adjuvant) in both soybean pre-bloom (V8) and bloom (R1) developmental stages. The experimental design was randomized blocks with four replicates. Phytotoxicity, gas exchange and chlorophyll a fluorescence traits, pollen grain viability, pollen grain germination, flower abortion and soybean production components were evaluated. The fungicides did not affect the physiological traits, pollen grain germination and crop yield.
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Affiliation(s)
- Verônica Barbosa Junqueira
- Ecophysiology and Plant Productivity Laboratory, Goiano Federal Institute of Science and Technology - Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
| | - Caroline Müller
- Ecophysiology and Plant Productivity Laboratory, Goiano Federal Institute of Science and Technology - Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
| | - Arthur Almeida Rodrigues
- Laboratory of Plant Anatomy, Goiano Federal Institute of Science and Technology - Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
| | - Thales Simioni Amaral
- Ecophysiology and Plant Productivity Laboratory, Goiano Federal Institute of Science and Technology - Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
| | - Priscila Ferreira Batista
- Ecophysiology and Plant Productivity Laboratory, Goiano Federal Institute of Science and Technology - Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
| | - Adinan Alves Silva
- Ecophysiology and Plant Productivity Laboratory, Goiano Federal Institute of Science and Technology - Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
| | - Alan Carlos Costa
- Ecophysiology and Plant Productivity Laboratory, Goiano Federal Institute of Science and Technology - Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil.
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11
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Wang YJ, Wang L, He X, Xu DD, Tang J, Ma YT, Yan YJ, Gu YC, Yang J, Huang SX. Characterization of inthomycin biosynthetic gene cluster revealing new insights into carboxamide formation. Chin J Nat Med 2020; 18:677-83. [PMID: 32928511 DOI: 10.1016/S1875-5364(20)60006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Indexed: 11/20/2022]
Abstract
Inthomycins are polyketide antibiotics which contain a terminal carboxamide group and a triene chain. Inthomycin B (1) and its two new analogues 2 and 3 were isolated from the crude extract of Streptomyces pactum L8. Identification of the gene cluster for inthomycin biosynthesis as well as the 15N-labeled glycine incorporation into inthomycins are described. Combined with the gene deletion of the rare P450 domain in the NRPS module, a formation mechanism of carboxamide moiety in inthomycins was proposed via an oxidative release of the assembly chain assisted by the P450 domain.
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12
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Gapil Tiamas S, Daressy F, Abou Samra A, Bignon J, Steinmetz V, Litaudon M, Fourneau C, Hoong Leong K, Ariffin A, Awang K, Desrat S, Roussi F. Pro-apoptotic carboxamide analogues of natural fislatifolic acid targeting Mcl-1 and Bcl-2. Bioorg Med Chem Lett 2020; 30:127003. [PMID: 32035700 DOI: 10.1016/j.bmcl.2020.127003] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/30/2020] [Accepted: 02/01/2020] [Indexed: 12/14/2022]
Abstract
A library of 26 novel carboxamides deriving from natural fislatifolic acid has been prepared. The synthetic strategy involved a bio-inspired Diels-Alder cycloaddition, followed by functionalisations of the carbonyl moiety. All the compounds were evaluated on Bcl-xL, Mcl-1 and Bcl-2 proteins. In this series of cyclohexenyl chalcone analogues, six compounds behaved as dual Bcl-xL/Mcl-1 inhibitors in micromolar range and one exhibited sub-micromolar affinities toward Mcl-1 and Bcl-2. The most potent compounds evaluated on A549 and MCF7 cancer cell lines showed moderate cytotoxicities.
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Affiliation(s)
- Shelly Gapil Tiamas
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France; Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Florian Daressy
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France; Université Paris-Saclay, UMR CNRS 8126, Institut Gustave Roussy, 114 rue Edouard-Vaillant, 94805 Villejuif Cedex, France
| | - Alma Abou Samra
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Jérome Bignon
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Vincent Steinmetz
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Marc Litaudon
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Christophe Fourneau
- Université Paris-Saclay, BioCIS, Faculté de Pharmacie de Châtenay-Malabry, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry, France
| | - Kok Hoong Leong
- Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Azhar Ariffin
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Sandy Desrat
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France.
| | - Fanny Roussi
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France.
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Abstract
P2X7 has continued to be a target of immense interest since it is implicated in several peripheral and central nervous system disorders that result from inflammation. This review primarily describes new P2X7 receptor antagonists that have been investigated and disclosed in patent applications or primary literature since 2015. While a crystal structure of the receptor to aid in the design of novel chemical structures remains elusive, many of the chemotypes that have been disclosed contain similarities, with an amide motif present in all series that have been explored to date. Several of the recent antagonists described are brain penetrant, and two compounds are currently in clinical trials for CNS indications. Additionally, brain penetrant PET ligands have been developed that aid in measuring target engagement and these ligands can potentially be used as biomarkers.
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Affiliation(s)
- Christine F Gelin
- Discovery Chemistry, Discovery Sciences, Janssen Research and Development, LLC, San Diego, CA, United States.
| | - Anindya Bhattacharya
- Neuroscience, Janssen Research and Development, LLC, San Diego, CA, United States
| | - Michael A Letavic
- Discovery Chemistry, Discovery Sciences, Janssen Research and Development, LLC, San Diego, CA, United States
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Beegum S, Mary YS, Mary YS, Thomas R, Armaković S, Armaković SJ, Zitko J, Dolezal M, Van Alsenoy C. Exploring the detailed spectroscopic characteristics, chemical and biological activity of two cyanopyrazine-2- carboxamide derivatives using experimental and theoretical tools. Spectrochim Acta A Mol Biomol Spectrosc 2020; 224:117414. [PMID: 31376725 DOI: 10.1016/j.saa.2019.117414] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [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: 06/24/2019] [Revised: 07/13/2019] [Accepted: 07/21/2019] [Indexed: 06/10/2023]
Abstract
This article represents the spectroscopic and computational studies of two new pyrazine compounds. In order to establish the structure and functional nature of the compounds, we have employed Fourier transformed infrared (FT-IR) and Raman spectra, nuclear magnetic resonance (NMR) spectra, and ultraviolet (UV) absorptions and have compared them with the simulated computational spectra and found that they are in the agreeable range. Simulated hyperpolarisability values are used to obtain the nonlinear optic (NLO) activity of the compound, to be used in organic electronic materials. The charge transfer and related properties was investigated by the simulation of electronic spectrum with time dependent density functional theory (TD-DFT). Natural transition orbitals (NTO) provides information about which region of the molecules are more involved in the electronic transitions and the charge transfer properties for the lowest energy excitation have been analyzed on the basis of electron density variation. Molecular dynamics simulations provide information about the behavior of the molecule in solutions. Frontier orbital analysis and study of various reactivity descriptors like ALIE and Fukui provided deep knowledge on the reactivity side. Molecular docking has been also performed to investigate the interaction between title molecules and exhibits inhibitory activity against Pseudomonas aeruginosa Enoyl-Acyl carrier protein reductase (Fabl).
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Affiliation(s)
- Shargina Beegum
- Department of Physics, Fatima Mata National College, Kollam, Kerala, India
| | - Y Sheena Mary
- Department of Physics, Fatima Mata National College, Kollam, Kerala, India
| | - Y Shyma Mary
- Department of Physics, Fatima Mata National College, Kollam, Kerala, India
| | - Renjith Thomas
- Department of Chemistry, St Berchmans College (Autonomous), Changanassery, Kerala, India 686101.
| | - Stevan Armaković
- University of Novi Sad, Faculty of Sciences, Department of Physics, Trg D. Obradovića 4, 21000 Novi Sad, Serbia
| | - Sanja J Armaković
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
| | - Jan Zitko
- Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, Hradec Kralove 500 05, Czech Republic
| | - Martin Dolezal
- Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, Hradec Kralove 500 05, Czech Republic
| | - C Van Alsenoy
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
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15
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Eze FU, Okoro UC, Ugwu DI, Okafor SN. New carboxamides bearing benzenesulphonamides: Synthesis, molecular docking and pharmacological properties. Bioorg Chem 2019; 92:103265. [PMID: 31525524 DOI: 10.1016/j.bioorg.2019.103265] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/16/2019] [Accepted: 09/06/2019] [Indexed: 01/13/2023]
Abstract
Ten new derivatives of benzenesulphonamide bearing carboxamide functionality were synthesized and investigated for their in vitro antimicrobial, antioxidant and in vivo anti-inflammatory activities. Compound 9d inhibited carrageenan induced rat-paw oedema at 93.81, 88.79 and 86.09% at 1 h, 2 h and 3 h administration respectively. In the antimicrobial activity, compound 9a (6.54, 6.69 and 6.64 mg/mL) was most potent against S. aureus, B. subtilis and C. albicans respectively, compound 9e (6.45 and 6.46 mg/mL) was most active against P. aeruginosa and A. niger respectively while compound 9i (6.24 mg/mL) was most active against E. coli. Only compound 9a (IC50 0.3052 mg/mL) had comparable activity with Vitamin C (IC50 0.2090 mg/mL) in the antioxidant assay.
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Affiliation(s)
- Florence Uchenna Eze
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.
| | | | - David Izuchukwu Ugwu
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Sunday N Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka, Nigeria
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van Greunen DG, Johan van der Westhuizen C, Cordier W, Nell M, Stander A, Steenkamp V, Panayides JL, Riley DL. Novel N-benzylpiperidine carboxamide derivatives as potential cholinesterase inhibitors for the treatment of Alzheimer's disease. Eur J Med Chem 2019; 179:680-693. [PMID: 31280020 DOI: 10.1016/j.ejmech.2019.06.088] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 12/24/2022]
Abstract
A series of fifteen acetylcholinesterase inhibitors were designed and synthesised based upon the previously identified lead compound 5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2-yl 1-benzylpiperidine-4-carboxylate (5) which showed good inhibitory activity (IC50 0.03 ± 0.07 μM) against acetylcholinesterase. A series of compounds were prepared wherein the ester linker in the original lead compound was exchanged for a more metabolically stable amide linker and the indanone moiety was exchanged for a range of aryl and aromatic heterocycles. The two most active analogues 1-benzyl-N-(5,6-dimethoxy-8H-indeno[1,2-d]thiazol-2-yl)piperidine-4-carboxamide (28) and 1-benzyl-N-(1-methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) piperidine-4-carboxamide (20) afforded in vitro IC50 values of 0.41 ± 1.25 and 5.94 ± 1.08 μM, respectively. In silico screening predicts that 20 will be a blood brain-barrier permeant, and molecular dynamic simulations are indicative of a close correlation between the binding of 20 and the Food and Drug Administration-approved cholinesterase inhibitor donepezil (1).
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Affiliation(s)
- Divan G van Greunen
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Lynnwood Road, Pretoria, South Africa
| | - C Johan van der Westhuizen
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Lynnwood Road, Pretoria, South Africa
| | - Werner Cordier
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria, Bophelo Road, Pretoria, South Africa
| | - Margo Nell
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria, Bophelo Road, Pretoria, South Africa
| | - Andre Stander
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Lynnwood Road, Pretoria, South Africa
| | - Vanessa Steenkamp
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria, Bophelo Road, Pretoria, South Africa
| | - Jenny-Lee Panayides
- Pioneering Health Sciences, CSIR Biosciences, Meiring Naudé Road, Pretoria, South Africa.
| | - Darren L Riley
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Lynnwood Road, Pretoria, South Africa.
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17
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Ugwu DI, Okoro UC, Mishra NK, Okafor SN. Novel Phenoxazinones as potent agonist of PPAR-α: design, synthesis, molecular docking and in vivo studies. Lipids Health Dis 2018; 17:120. [PMID: 29789011 PMCID: PMC5964670 DOI: 10.1186/s12944-018-0764-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 04/30/2018] [Indexed: 11/24/2022] Open
Abstract
Background The use of statin, a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor for the treatment of dyslipidemia has been associated with dose limiting hepatoxicity, mytotoxicity and tolerability due to myalgias thereby necessitating the synthesis of new drug candidates for the treatment of lipid disorder. Methods The reaction of appropriate benzenesulphonamide with substituted phenoxazinone in the presence of phenylboronic acid gave the targeted compounds. The molecular docking study were carried out using autodock tool against peroxisome proliferator activated receptor alpha. The in vivo lipid profile were assayed using conventional methods. The kidney and liver function test were carried out to assess the effect of the derivatives on the organs. The LD50 of the most active derivatives were determined using mice. Results The targeted compounds were successfully synthesized in excellent yields and characterized using spectroscopic techniques. The results of the molecular docking experiment showed that they were good stimulant of peroxisome proliferator activated receptor alpha. Compound 9f showed activity at Ki of 2.8 nM and binding energy of 12.6 kcal/mol. All the compounds tested reduced triglyceride, total cholesterol, low density lipoprotein cholesterol and very low density lipoprotein cholesterol level in the mice model. Some of the reported compounds also increased high density lipoprotein cholesterol level in the mice. The compounds did not have appreciable effect on the kidney and liver of the mice used. The LD50 showed that the novel compounds have improved toxicity profile. Conclusion The synthesis of fifteen new derivatives of carboxamides bearing phenoxazinone and sulphonamide were successful. The compounds possessed comparable activity to gemfibrozil. The reported compounds had better toxicity profile than gemfibrozil and could serve as a replacement for the statins and fibrate class of lipid agents.
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Affiliation(s)
- David I Ugwu
- Medicinal Chemistry unit, Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, 410002, Nigeria. .,Department of Chemistry, Indian Institute of Technology, Kanpur, India.
| | - Uchechukwu C Okoro
- Medicinal Chemistry unit, Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, 410002, Nigeria
| | - Narendra K Mishra
- Department of Chemistry, Indian Institute of Technology, Kanpur, India
| | - Sunday N Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka, Nigeria
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18
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Aday B, Ulus R, Tanç M, Kaya M, Supuran CT. Synthesis of novel 5-amino-1,3,4-thiadiazole-2-sulfonamide containing acridine sulfonamide/ carboxamide compounds and investigation of their inhibition effects on human carbonic anhydrase I, II, IV and VII. Bioorg Chem 2018; 77:101-105. [PMID: 29353727 DOI: 10.1016/j.bioorg.2017.12.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/24/2017] [Accepted: 12/30/2017] [Indexed: 10/18/2022]
Abstract
Herein, we report that acridine intermediates 5 were obtained from the reduction of nitro acridine derivatives 4, which were synthesized via condensation of dimedone, p-nitrobenzaldehyde with 4-amino-N-(5-sulfamoyl-1,3,4-thiadiazol-2-yl)benzamide, respectively. Then acridine sulfonamide/carboxamide (7a-i) compounds were synthesized by reaction of amino acridine 5 with sulfonyl chlorides and carbamoyl chlorides. The new compounds were characterized by melting points, FT-IR, 1H NMR, 13C NMR and HRMS analyzes. The evaluation of in vitro test of the synthesized compounds against hCA I, II, IV and VII showed that some of them are potent inhibitors. Among them, compound 7e showed the most potent activity against hCA II with a KI of 7.9 nM.
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Affiliation(s)
- Burak Aday
- Chemistry Department, Faculty of Arts and Science, Dumlupınar University, 43100 Kütahya, Turkey
| | - Ramazan Ulus
- Chemistry Department, Faculty of Arts and Science, Dumlupınar University, 43100 Kütahya, Turkey
| | - Muhammet Tanç
- Università degli Studi di Firenze, NEUROFARBA Dept., Sezione di Scienze Farmaceutiche e Nutraceutiche, 50019 Sesto Fiorentino, Florence, Italy
| | - Muharrem Kaya
- Biochemistry Department, Faculty of Arts and Science, Dumlupınar University, 43100 Kütahya, Turkey.
| | - Claudiu T Supuran
- Università degli Studi di Firenze, NEUROFARBA Dept., Sezione di Scienze Farmaceutiche e Nutraceutiche, 50019 Sesto Fiorentino, Florence, Italy.
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19
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Flores-Carrillo P, Velázquez-López JM, Aguayo-Ortiz R, Hernández-Campos A, Trejo-Soto PJ, Yépez-Mulia L, Castillo R. Synthesis, antiprotozoal activity, and chemoinformatic analysis of 2-(methylthio)-1H-benzimidazole-5- carboxamide derivatives: Identification of new selective giardicidal and trichomonicidal compounds. Eur J Med Chem 2017; 137:211-220. [PMID: 28595066 DOI: 10.1016/j.ejmech.2017.05.058] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 02/28/2017] [Revised: 05/26/2017] [Accepted: 05/28/2017] [Indexed: 11/17/2022]
Abstract
A series of twelve new 2-(methylthio)-1H-benzimidazole-5-carboxamide derivatives (1-12) were synthesized and their antiparasitic activity was tested in vitro against Giardia intestinalis, Trichomonas vaginalis and Entamoeba histolytica. Experimental evaluations showed IC50 values within the nanomolar range for all tested compounds, some showing higher activity than metronidazole and albendazole. A chemoinformatic study was used to compare the structure-activity relationship of the synthesized carboxamides with those of 91 previously studied benzimidazoles, and with some Nitazoxanide-N-methylbenzimidazole hybrids recently synthetized by our group. Compounds 1 and 3 were identified as prominent selective compounds against T. vaginalis and G. intestinalis, respectively, while compound 4 was found to be of broad spectrum against the three protozoans.
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Affiliation(s)
- Paulina Flores-Carrillo
- Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, México, CDMX 04510, Mexico
| | - José Miguel Velázquez-López
- Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, México, CDMX 04510, Mexico
| | - Rodrigo Aguayo-Ortiz
- Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, México, CDMX 04510, Mexico
| | - Alicia Hernández-Campos
- Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, México, CDMX 04510, Mexico
| | - Pedro Josué Trejo-Soto
- Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, México, CDMX 04510, Mexico
| | - Lilián Yépez-Mulia
- Unidad de Investigación Médica en Enfermedades Infecciosas y Parasitarias, IMSS, México, CDMX 06720, Mexico
| | - Rafael Castillo
- Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, México, CDMX 04510, Mexico.
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20
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Le Roux J, Leriche C, Chamiot-Clerc P, Feutrill J, Halley F, Papin D, Derimay N, Mugler C, Grépin C, Schio L. Preparation and optimization of pyrazolo[1,5-a]pyrimidines as new potent PDE4 inhibitors. Bioorg Med Chem Lett 2015; 26:454-459. [PMID: 26681511 DOI: 10.1016/j.bmcl.2015.11.093] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 11/24/2015] [Accepted: 11/25/2015] [Indexed: 01/22/2023]
Abstract
A new series of pyrazolo[1,5-a]pyrimidines exemplified by compound 1, has been identified with moderate activity (IC50=165nM), following GSK256066 rescaffolding. Compound 1 optimization at positions 2, 3, 6 and 7 gave compound 10 with high in vitro activity (IC50=0.7nM). Modeling studies based on the PDB structure 3GWT with compound 5 showed the expected overlay with the carboxamide, the aryl moiety and the sulfone. Cyclisation of the primary amide to the 5 position of the pyrazolo[1,5-a]pyrimidines scaffold afforded compounds 15 and 16 with 200-fold enhancement in activity and cellular potency.
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Affiliation(s)
- Jacques Le Roux
- Sanofi Research Center, 13 Quai Jules Guesde, 94400 Vitry-sur-Seine, France
| | | | | | - John Feutrill
- SYN
- thesis Med Chem, 399 Royal Parade, Parkville, VIC 3052, Australia
| | - Frank Halley
- Sanofi Research Center, 13 Quai Jules Guesde, 94400 Vitry-sur-Seine, France.
| | - David Papin
- Sanofi Research Center, 13 Quai Jules Guesde, 94400 Vitry-sur-Seine, France
| | - Nathalie Derimay
- Sanofi Open innovation Access Plateform, 16 Rue d'Ankara, 67000 Strasbourg, France
| | - Christelle Mugler
- Sanofi Open innovation Access Plateform, 16 Rue d'Ankara, 67000 Strasbourg, France
| | | | - Laurent Schio
- Sanofi Research Center, 13 Quai Jules Guesde, 94400 Vitry-sur-Seine, France
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21
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Verma A, Wong DM, Islam R, Tong F, Ghavami M, Mutunga JM, Slebodnick C, Li J, Viayna E, Lam PCH, Totrov MM, Bloomquist JR, Carlier PR. 3-Oxoisoxazole-2(3H)- carboxamides and isoxazol-3-yl carbamates: Resistance-breaking acetylcholinesterase inhibitors targeting the malaria mosquito, Anopheles gambiae. Bioorg Med Chem 2015; 23:1321-40. [PMID: 25684426 PMCID: PMC4346421 DOI: 10.1016/j.bmc.2015.01.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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: 11/20/2014] [Revised: 01/07/2015] [Accepted: 01/15/2015] [Indexed: 10/24/2022]
Abstract
To identify potential selective and resistance-breaking mosquitocides against the African malaria vector Anopheles gambiae, we investigated the acetylcholinesterase (AChE) inhibitory and mosquitocidal properties of isoxazol-3-yl dimethylcarbamates (15), and the corresponding 3-oxoisoxazole-2(3H)-dimethylcarboxamide isomers (14). In both series, compounds were found with excellent contact toxicity to wild-type susceptible (G3) strain and multiply resistant (Akron) strain mosquitoes that carry the G119S resistance mutation of AChE. Compounds possessing good to excellent toxicity to Akron strain mosquitoes inhibit the G119S mutant of An. gambiae AChE (AgAChE) with ki values at least 10- to 600-fold higher than that of propoxur, a compound that does not kill Akron mosquitoes at the highest concentration tested. On average, inactivation of WT AgAChE by dimethylcarboxamides 14 was 10-20 fold faster than that of the corresponding isoxazol-3-yl dimethylcarbamates 15. X-ray crystallography of dimethylcarboxamide 14d provided insight into that reactivity, a finding that may explain the inhibitory power of structurally-related inhibitors of hormone-sensitive lipase. Finally, human/An. gambiae AChE inhibition selectivities of these compounds were low, suggesting the need for additional structural modification.
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Affiliation(s)
- Astha Verma
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
| | - Dawn M Wong
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
| | - Rafique Islam
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Fan Tong
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Maryam Ghavami
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
| | - James M Mutunga
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Carla Slebodnick
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
| | - Jianyong Li
- Department of Biochemistry, Virginia Tech, Blacksburg, VA 24061, USA
| | - Elisabet Viayna
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
| | - Polo C-H Lam
- Molsoft LLC, 11199 Sorrento Valley Road, San Diego, CA 92121, USA
| | - Maxim M Totrov
- Molsoft LLC, 11199 Sorrento Valley Road, San Diego, CA 92121, USA
| | - Jeffrey R Bloomquist
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Paul R Carlier
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA.
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Bhagyasree JB, Varghese HT, Panicker CY, Van Alsenoy C, Al-Saadi AA, Dolezal M, Samuel J. Spectroscopic (FT-IR, FT-Raman), first order hyperpolarizability, NBO analysis, HOMO and LUMO analysis of 5-tert-Butyl-6-chloro-N-[(4-(trifluoromethyl)phenyl]pyrazine-2- carboxamide. Spectrochim Acta A Mol Biomol Spectrosc 2015; 137:193-206. [PMID: 25218229 DOI: 10.1016/j.saa.2014.08.104] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 06/30/2014] [Revised: 08/21/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
The optimized molecular structure, vibrational frequencies, corresponding vibrational assignments of 5-tert-Butyl-6-chloro-N-[(4-(trifluoromethyl)phenyl]pyrazine-2-carboxamide have been investigated experimentally and theoretically using Gaussian09 software package. Potential energy distribution of normal modes of vibrations was done using GAR2PED program. The HOMO and LUMO analysis is used to determine the charge transfer within the molecule. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. From the NBO analysis it is evident that the increased electron density at the nitrogen, carbon atoms leads to the elongation of respective bond length and a lowering of the corresponding stretching wave number. The calculated geometrical parameters are in agreement with that of similar derivatives. The calculated first hyperpolarizability is high and the calculated data suggest an extended π-electron delocalization over the pyrazine ring and carboxamide moiety which is responsible for the nonlinearity of the molecule.
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Affiliation(s)
- J B Bhagyasree
- Department of Chemistry, Mar Ivanios College, Nalanchira, Trivandrum, Kerala, India
| | | | - C Yohannan Panicker
- Department of Physics, TKM College of Arts and Science, Kollam, Kerala, India.
| | | | - Abdulaziz A Al-Saadi
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Martin Dolezal
- Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, Hradec Kralove 50005, Czech Republic
| | - Jadu Samuel
- Department of Chemistry, Mar Ivanios College, Nalanchira, Trivandrum, Kerala, India
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Senthilkumar P, Nithya C, Anbarasan PM. Effect of donor (tetradecyloxy) and acceptor ( carboxamide) groups in trans-stilbene for DSSCs: quantum chemical investigations. Spectrochim Acta A Mol Biomol Spectrosc 2014; 117:181-185. [PMID: 23988535 DOI: 10.1016/j.saa.2013.07.110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 06/16/2013] [Revised: 07/23/2013] [Accepted: 07/31/2013] [Indexed: 06/02/2023]
Abstract
Incorporation of tetradecyloxy and carboxamide groups in trans-stilbene molecule (dye) has been investigated first time for Dye Sensitized Solar Cells (DSSCs) applications. To understand the changes in electronic structure, geometry, dipole moment and polarizability of the mentioned dye architecture has been carried out by using density functional theory (DFT) and time dependent DFT calculations using hybrid functional B3LYP method. Further, the semiconductor TiO2 is also used as a model to evaluate the photo conversion efficiency of the chosen dye architecture. Results reveal that tetradecyloxy and carboxamide groups act as an excellent donor and acceptor groups respectively which give rise to larger difference in excited state dipole moment than the ground state. This kind of stilbene based metal free organic dyes are act as a promising sensitizer for practical DSSCs applications.
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Affiliation(s)
- P Senthilkumar
- Department of Physics, Periyar University, Salem 636 011, Tamil Nadu, India
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Joseph T, Varghese HT, Yohannan Panicker C, Viswanathan K, Dolezal M, Manojkumar TK, Van Alsenoy C. Vibrational spectroscopic investigations and computational study of 5-tert-butyl-N-(4-trifluoromethylphenyl)pyrazine-2- carboxamide. Spectrochim Acta A Mol Biomol Spectrosc 2013; 113:203-214. [PMID: 23727674 DOI: 10.1016/j.saa.2013.04.101] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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: 01/06/2013] [Revised: 04/14/2013] [Accepted: 04/24/2013] [Indexed: 06/02/2023]
Abstract
Pyrazine and its derivatives form an important class of compounds present in several natural flavors and complex organic molecules. Quantum chemical calculations of the equilibrium geometry, harmonic vibrational frequencies, infrared intensities and Raman activities of 5-tert-Butyl-N-(4-trifluoromethylphenyl)pyrazine-2-carboxamide in the ground state were carried out by using density functional methods. Potential energy distribution of normal modes of vibrations was done using GAR2PED program. Nonlinear optical behavior of the examined molecule was investigated by the determination of first hyperpolarizability. The calculated HOMO and LUMO energies show the chemical activity of the molecule. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. The calculated geometrical parameters are in agreement with that of similar derivatives. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis.
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Affiliation(s)
- Tomy Joseph
- Department of Physics, St. Xavier's College, Vaikom, Kothavara, Kottayam, Kerala, India
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