Synthesis and antimicrobial activity of some new 1,2,4-trizoles

Abstract

A series of 1,2,4-triazole derivatives were synthesized using appropriate synthetic route and structures were confirmed by IR, 1H NMR and elemental analysis. All the synthesized compounds (6a-6h and 7a-7h) were evaluated for antimicrobial activity by determining their minimum inhibitory concentrations (MICs) against a panel of Gram-positive, Gram-negative bacteria and fungi. Most of the compounds showed significant antimicrobial activity against Gram-positive bacteria viz. S. aureus, B. subtilis, Gram-negative bacteria viz. E. coli, P. aerugenosa and fungi viz. C. albicans, A. niger. Some of the compounds showed better antibacterial activities against Gram-positive bacteria compared to Gram-negative bacteria. Compounds 7g, 6g, 6a exhibited good MICs against Gram-positive bacteria and 7f showed better MICs against Gram-negative bacteria compared to reference norfloxacin. Compounds 7f and 7d exhibited MICs which is equipotent to the reference drug ketoconazole.