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Patel PP, Patel NB, Tople MS, Patel VM, Ahmed I, Patel H. Microwave produced 8-methyl-1,2,4,8-tetraazaspiro[4.5]dec-2-en-3-amine derivatives: their in vitro and in silico analysis. Mol Divers 2023:10.1007/s11030-023-10665-z. [PMID: 37280405 DOI: 10.1007/s11030-023-10665-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 05/22/2023] [Indexed: 06/08/2023]
Abstract
Compound 1 is formed by a microwave-assisted multicomponent reaction of 1-methylpiperidin-4-one, 2-amino-4-methoxy-6-methyl-1,3,5-triazine, and thiosemicarbazide, followed by the synthesis of Schiff base 2a-l with a variety of aldehydes. A comparison was made between the conventional and microwave methods, and the microwave approach was shown to be considerably superior to the classical method since it takes less time and produces higher yields. Several spectral investigations, including 1H NMR, 13C NMR, Mass, and IR spectroscopy, are used to characterize the complete series. In vitro antibacterial testing suggests that compounds 2c, 2f, and 2g are promising antibacterial agents, although compounds 2d, 2e, and 2l are effective antimycobacterial agents when compared to the conventional medicine Rifampicin. The docking score from docking studies is considerable, which validates the results of the biological examination. Molecular docking was performed on Escherichia coli DNA gyrase. According to the in silico ADME analysis, each drug molecule is ideal for use in terms of drug solubility, hydrogen bonding, and cell permeability.
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Affiliation(s)
- Parth P Patel
- Organic Research Laboratory, Department of Chemistry, Veer Narmad South Gujarat University, Udhana-Magdalla Road, Surat, Gujarat, 395 007, India
| | - Navin B Patel
- Organic Research Laboratory, Department of Chemistry, Veer Narmad South Gujarat University, Udhana-Magdalla Road, Surat, Gujarat, 395 007, India.
| | - Manesh S Tople
- Organic Research Laboratory, Department of Chemistry, Veer Narmad South Gujarat University, Udhana-Magdalla Road, Surat, Gujarat, 395 007, India
| | - Vatsal M Patel
- Department of Chemistry, Jamanaben Narottambhai Motiram Patel Science College, Surat, Gujarat, 395017, India
| | - Iqrar Ahmed
- 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
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Reddy DS, Sinha A, Kurjogi MM, Shanavaz H, Kumar A. Design, synthesis, molecular docking, and biological evaluation of coumarin-thymidine analogs as potent anti-TB agents. Arch Pharm (Weinheim) 2023; 356:e2200633. [PMID: 36634969 DOI: 10.1002/ardp.202200633] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/14/2023]
Abstract
With the intent to discover new antituberculosis (TB) compounds, coumarin-thymidine analogs were synthesized using second-order nucleophilic substitution reactions of bromomethyl coumarin with thymidine. The newly synthesized coumarin-thymidine conjugates (1a-l) were characterized using IR, NMR, GC-MS, and CHN elemental analysis. The novel conjugates were found to exhibit potent anti-TB activity against the Mycobacterium tuberculosis H37 Rv strain, with minimum inhibitory concentrations (MIC) of the active compounds ranging between 0.012 and 0.482 µM. Compound 1k was established as the most active candidate with a MIC of 0.012 µM. The toxicity study on HEK cells confirmed the nontoxic nature of compounds 1e, 1h, 1i, 1j, and 1k. Also, the most active compounds (1k, 1j, and 1e) were stable in the pH range from 2.5 to 10, indicating compatibility with the biophysical environment. Based on the pKa studies, compounds 1k, 1j, and 1e are capable of crossing lipid-membrane barriers and acting on target cells. Molecular docking studies on the M. tuberculosis β-oxidation trifunctional enzyme (PDB ID: 7O4V) were conducted to investigate the mechanisms of anti-TB activity. All compounds showed excellent hydrogen binding interactions and exceptional docking scores against M. tuberculosis, which was in accordance with the results. Compounds 1a-l possessed excellent affinity to proteins, with binding energies ranging from -7.4 to -8.7 kcal/mol.
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Affiliation(s)
- Dinesh S Reddy
- Centre for Nano and Material Sciences, Jain (Deemed-to-be-University), Bangalore, Karnataka, India
| | - Anamika Sinha
- Centre for Nano and Material Sciences, Jain (Deemed-to-be-University), Bangalore, Karnataka, India
| | - Mahantesh M Kurjogi
- Multi-Disciplinary Research Unit, Karnataka Institute of Medical Sciences, Hubli, Karnataka, India
| | - H Shanavaz
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore, Karnataka, India
| | - Amit Kumar
- Centre for Nano and Material Sciences, Jain (Deemed-to-be-University), Bangalore, Karnataka, India
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3
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Akki M, Reddy DS, Katagi KS, Kumar A, Devarajegowda HC, Kumari M S, Babagond V, Joshi SD. Coumarin Hydrazone Oxime Scaffolds as Potent Anti‐tubercular Agents: Synthesis, X‐ray crystal and Molecular Docking Studies. ChemistrySelect 2022. [DOI: 10.1002/slct.202203260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mahesh Akki
- Research Centre Department of Chemistry Karnatak University's Karnatak Science College Dharwad 580001 Karnataka India
| | - Dinesh S. Reddy
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Jakkasandra Post Bangalore 562112 Karnataka India
| | - Kariyappa S. Katagi
- Research Centre Department of Chemistry Karnatak University's Karnatak Science College Dharwad 580001 Karnataka India
| | - Amit Kumar
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Jakkasandra Post Bangalore 562112 Karnataka India
| | | | - Sunitha Kumari M
- Department of Physics Yuvaraja's College University of Mysore Mysuru 570005 Karnataka India
| | - Vardhaman Babagond
- Research Centre Department of Chemistry Karnatak University's Karnatak Science College Dharwad 580001 Karnataka India
| | - Shrinivas D. Joshi
- Novel Drug Design and Discovery Laboratory Department of Pharmaceutical Chemistry S.E.T's College of Pharmacy Sangolli Rayanna Nagar Dharwad 580 002 Karnataka India
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Akki M, Reddy DS, Katagi KS, Kumar A, Devarajegowda HC, M SK, Babagond V, Mane S, Joshi SD. Synthesis of coumarin-thioether conjugates as potential anti-tubercular agents: Their molecular docking and X-ray crystal studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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