Abstract
A series of novel 6-ethoxy-6-oxido-3-oxo(thioxo)(imino)-5-substituted-2,7-dihydro-1,2,4-triazolo[3,4-e][1,2,3]diazaphospholes 2a-f was synthesized and characterized by IR and NMR (1H, 13C, and 31P) spectroscopic analysis. The methodology developed was one-pot three-component reaction of ethyl bromoacetate, triethyl phosphite and carbo(thio)(amino)hydrazides. The synthesized compounds were screened for their antimicrobial activities. 6-Ethoxy-6-oxido-3-oxo(thioxo)-5-phenyl-2,5,7-trihydro-1,2,4-triazolo[3,4-e][1,2,3]diazaphospholes (2c,d) exhibited significantly higher antimicrobial effects against the tested bacterial and fungal strains compared to other compounds and standard drug.
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