Synthesis and Biological Evaluation of 3-Substituted-4-[2'-(4"isobutylphenyl)propionamido]-5-mercapto-1,2,4-triazoles and Their Derivatives.-A variety of the title 5-mercaptotriazoles (III) (15 examples) are synthesized and converted into S-alkyl derivatives (V) and triazolothiadiazoles (VI). Some of the compounds obtained show promising antimicrobial and antiinflammatory activities. -(UDUPI, R. H.; SURESH, G. V.; SETTY, S. RAMACHANDRA; BHAT, A. R.; J. Indian Chem.