Design,synthesis and molecular modeling studies of new series of s-triazine derivatives as antimicrobial agents against multi-drug resistant clinical isolates |
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Affiliation: | 1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi''an 710021, China;2. Key Laboratory of Leather Cleaner Production, China National Light Industry, Xi''an 710021, China;3. School of Arts and Sciences, Shaanxi University of Science & Technology, Xi''an 710021, China;1. Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, Punjab 142001, India;2. Department of Pharmaceutical Chemistry, College of Pharmacy, National University of Science and technology, PO620, PC 130 Azaiba, Bousher, Muscat, Oman;3. Department of Pharmacology, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, Punjab 142001, India;4. Department of Botany, Kumaun University, D.S.B Campus, Nainital, Uttarakhand, India;5. Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, SAS Nagar, Sector 67, Mohali, Punjab 160062, India |
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Abstract: | Three novel series of s-triazine derivatives, including thirty-five new compounds 2a-d, 3a-3p, 4b-d, 5b-d, 6d-6d, and 7a-7f were synthesized comprising a diversity of substituents based on the structure of Astrazeneca arylaminotriazine DNA gyrase B inhibitor. The antimicrobial activity was determined for all compounds against Staphylococcus aureus, Escherichia coli and Candida albicans using the two-fold serial dilution technique and against reference standards Ampicillin for the antibacterial screening and Clotrimazole regarding the antifungal evaluation. The tested compounds showed strong to moderate antibacterial inhibitory action and weak antifungal activity. Compounds 3j and 6b were the most potent antibacterial agents against the tested strains and multi-drug resistant (MDR) clinical isolates of Klebsiella pneumoniae and methicillin resistant Staphylococcus aureus (MRSA1) with minimal toxicity in comparison to the reference drugs. In silico molecular properties calculations and molecular docking study for 3j and 6b revealed that both compounds could be considered as promising antibacterial DNA gyrase B inhibitors. |
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Keywords: | Antimicrobial activity MDR clinical isolates SAR Molecular docking |
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