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Zala AR, Kumar D, Razakhan U, Rajani DP, Ahmad I, Patel H, Kumari P. Molecular modeling and biological investigation of novel s-triazine linked benzothiazole and coumarin hybrids as antimicrobial and antimycobacterial agents. J Biomol Struct Dyn 2024; 42:3814-3825. [PMID: 37218082 DOI: 10.1080/07391102.2023.2216293] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 01/04/2023] [Accepted: 05/12/2023] [Indexed: 05/24/2023]
Abstract
A novel series of s-triazine linked benzothiazole and coumarin hybrids (6a-6d, 7a-7d, and 8a-8d) were synthesized and characterized by IR, NMR, and mass spectrometry. The compound's in vitro antibacterial and antimycobacterial activities were also evaluated. Remarkable antibacterial activity with MIC in the range of 12.5-62.5 μM and antifungal activity of 100-200 μM were demonstrated by in vitro antimicrobial analysis. Compounds 6b, 6d, 7b, 7d, and 8a strongly inhibited all bacterial strains, while 6b, 6c, and 7d had good to moderate efficacy against M. tuberculosis H37Rv. Synthesized hybrids are observed in the active pocket of the S. aureus dihydropteroate synthetase enzyme, according to a molecular docking investigations. Among the docked compounds, 6d had a strong interaction and a greater binding affinity, and the dynamic stability of protein-ligand complexes was examined using molecular dynamic simulation with various settings at 100 ns. The proposed compounds successfully maintained their molecular interaction and structural integrity inside the S. aureus dihydropteroate synthase, according to the MD simulation analysis. These in silico analyses supported the in vitro antibacterial results of compound 6d, which demonstrated outstanding in vitro antibacterial efficacy against all bacterial strains. In the quest for new antibacterial drug-like molecules, compounds 6d, 7b, and 8a have been identified as promising lead compounds.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Ajayrajsinh R Zala
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India
| | - Dinesh Kumar
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India
| | - Uvais Razakhan
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India
| | | | - Iqrar Ahmad
- Department of Pharmaceutical Chemistry, Prof. Ravindra Nikam College of Pharmacy, Gondur, Dhule, India
| | - Harun Patel
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Premlata Kumari
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India
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Zala AR, Tiwari R, Naik HN, Ahmad I, Patel H, Jauhari S, Kumari P. Design and synthesis of pyrrolo[2,3-d]pyrimidine linked hybrids as α-amylase inhibitors: molecular docking, MD simulation, ADMET and antidiabetic screening. Mol Divers 2023:10.1007/s11030-023-10683-x. [PMID: 37344700 DOI: 10.1007/s11030-023-10683-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 02/05/2023] [Accepted: 06/17/2023] [Indexed: 06/23/2023]
Abstract
Novel pyrrolo[2,3-d]pyrimidine-based analogues were designed, synthesized, and evaluated for their ability to inhibit the α-amylase enzyme in order to treat diabetes. In vitro antidiabetic analysis demonstrated excellent antidiabetic action for compounds 5b, 6c, 7a, and 7b, with IC50 values in the 0.252-0.281 mM range. At a 200 μg/mL concentration, the exceptional percent inhibition values for compounds 5a, 5b, 5d, and 6a varied from 97.79 ± 2.86% to 85.56 ± 4.13% overperforming the standard (acarbose). Molecular docking of all compounds performed with Bacillus paralicheniformis α-amylase enzyme. The most active compounds via in vitro and non-toxic via in silico ADMET and molecular docking analysis, hybrids 6c, 7a, and 7b displayed binding affinity from - 8.2 and - 8.5 kcal/mol. Molecular dynamic simulations of most active compound 5b and 7a investigated into the active sites of the Bacillus paralicheniformis α-amylase enzyme for a 100-ns indicating the stability of hybrid-protein complex. Consistent RGyr values for the two complexes under study further suggest that the system's proteins are closely packed in the dynamic state. Synthesized analogs' in vitro biological assessments, ADMET, molecular docking, and MD modelling reveal that 5b, 6c, 7a, and 7b hybrid analogs may be employed in the development of future antidiabetic drugs.
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Affiliation(s)
- Ajayrajsinh R Zala
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India
| | - Ramgopal Tiwari
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India
| | - Hem N Naik
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India
| | - Iqrar Ahmad
- Department of Pharmaceutical Chemistry, Prof. Ravindra Nikam College of Pharmacy, Gondur, Dhule, Maharashtra, 424002, India
| | - Harun Patel
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India
| | - Smita Jauhari
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India
| | - Premlata Kumari
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India.
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Zala AR, Naik HN, Ahmad I, Patel H, Jauhari S, Kumari P. Design and synthesis of novel 1,2,3-triazole linked hybrids: Molecular docking, MD simulation, and their antidiabetic efficacy as α-Amylase inhibitors. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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Zala AR, Rajani DP, Ahmad I, Patel H, Kumari P. Synthesis, characterization, molecular dynamic simulation, and biological assessment of cinnamates linked to imidazole/benzimidazole as a CYP51 inhibitor. J Biomol Struct Dyn 2023; 41:11518-11534. [PMID: 36691770 DOI: 10.1080/07391102.2023.2170918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/26/2022] [Indexed: 01/25/2023]
Abstract
A class of 2-(1H-imidazol-1-yl)-1-phenylethyl cinnamates 6a-6j and 2-(1H-benzo[d]imidazol-1-yl)-1-phenylethyl cinnamates 7a-7j were synthesized, and their synthesis was validated using various spectroscopic techniques like IR, NMR, and Mass spectrometry. In addition, the compounds were assessed for in-vitro antibacterial against gram-positive and gram-negative strains and in-vitro antifungal against six different fungal strains. Compounds 6 g, 7 b, 7f, and 7 g exhibited significant activity against all bacterial strains ranging from MIC = 12.5-50 µg/mL, and compounds 6 g, 7 b, and 7 g exhibited considerable activity against all fungal strains ranging from MFC = 125-200 µg/mL. A molecular docking study indicated that compounds 6 g, 7 b, 7 g, and 7j could be lodged in the active pocket and inhibit C. albicans Sterol 14α-demethylase (CYP51) protein via various interactions, and these studies validate the antifungal results. Different parameters from the 100 ns MD simulation study are investigated to evaluate the dynamic stability of protein-ligand complexes. According to the MD simulation study, the proposed compounds effectively kept their molecular interaction and structural integrity within the C. albicans Sterol 14-demethylase. Compounds 6 g, 7 b, and 7 g are promising lead compounds in searching for novel antifungal drug-like molecules. Furthermore, in silico ADME indicates that these compounds possess drug-like physicochemical properties to be orally bioavailable.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Ajayrajsinh R Zala
- Department of Chemistry, S.V. National Institute of Technology, Surat, India
| | | | - Iqrar Ahmad
- Department of Pharmaceutical Chemistry, Prof. Ravindra Nikam College of Pharmacy, Gondur, India
| | - Harun Patel
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, India
| | - Premlata Kumari
- Department of Chemistry, S.V. National Institute of Technology, Surat, India
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Zala AR, Rajani DP, Kumari P. Synthesis, molecular docking, ADME study, and antimicrobial potency of piperazine based cinnamic acid bearing coumarin moieties as a DNA gyrase inhibitor. J Biochem Mol Toxicol 2023; 37:e23231. [PMID: 36181335 DOI: 10.1002/jbt.23231] [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: 02/19/2022] [Revised: 07/29/2022] [Accepted: 09/16/2022] [Indexed: 01/18/2023]
Abstract
A series of novel piperazine based cinnamic acid bearing coumarin derivatives were designed and synthesized by piperazine based cinnamic acids esterification with 4-hydroxycoumarin and characterized by various spectral techniques like infrared, 1 H nuclear magnetic resonance (NMR), 13 C NMR, and mass. The novel bioactive compounds (7a-7m) screen their potential against different bacterial and fungal strains. Compound 7g (minimum inhibitory concentration [MIC] = 12.5 µg/ml) exhibited potent antibacterial activity against Escherichia coli strain. Compounds 7d, 7f, 7g, 7k, 7l, and 7m showed potent antibacterial activity against all bacterial strains. Compounds 7a, 7g, 7h, 7k, 7l, and 7m exhibited potent antifungal activity against all fungal strains. Furthermore, a molecular docking study revealed that compounds 7d, 7f, 7g, and 7k could bind to the active site of E. coli DNA gyrase subunit B protein and form hydrogen bonding with crucial amino acid residues Arg136 in the active sites. Comprehensively, our study recommends that 7d, 7f, 7g, and 7k could be a promising lead for developing more efficient antimicrobial drug candidates and DNA gyrase inhibitors.
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Affiliation(s)
- Ajayrajsinh R Zala
- Department of Chemistry, S. V. National Institute of Technology, Surat, Gujarat, India
| | | | - Premlata Kumari
- Department of Chemistry, S. V. National Institute of Technology, Surat, Gujarat, India
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