SYNTHESIS AND EVALUATION OF ANTIMICROBIAL ACTIVITY OF PHENYLudAND FURAN-2-YL1,2,4 TRIAZOLO4,3-aQUINOXALIN-4(5H)-ONEudAND THEIR HYDRAZONE PRECURSORS

摘要

A variety of 1-(s-phenyl)-[1,2,4]triazolo[4,3-a]quinoxalin-4(5H)-one (3a-3h) and 1-(s-furan-2-yl)-[1,2,4]triazolo[4,3-uda]quinoxalin-4(5H)-one (5a-d) were synthesized from thermal annelation of corresponding hydrazones (2a-h) and (4a-d)udrespectively in the presence of ethylene glycol which is a high boiling solvent. The structures of the compounds preparedudwere confirmed by analytical and spectral data. Also, the newly synthesized compounds were evaluated for possibleudantimicrobial activity. 3-(2-(4-hydroxylbenzylidene)hydrazinyl)quinoxalin-2(1H)-one (2e) was the most activeudantibacterial agent while 1-(5-Chlorofuran-2-yl)-[1,2,4]triazolo[4,3-a]quinoxalin-4(5H)-one (5c) stood out as the mostudpotent antifungal agent.