Química medicinal

Synthesis and Antimicrobial Activity of Some New 3,5-Disubstituted Pyrazoles and Isoxazoles

Abstract

Simha Pulla Reddy, Gudi Yamini, Donthamsetty V Sowmya, Venkatapuram Padmavathi and Adivireddy Padmaja

A new class of 3,5-disubstituted pyrazoles and isoxazoles were prepared from the Michael acceptors 1-furanyl / thiophenyl / pyridinyl-3-indole-prop-2-en-1-ones under ultrasonication and evaluated for antimicrobial activity. Amongst all the tested compounds fluoro substituted thiophene linked compounds 12b and 18b displayed promising antibacterial activity particularly against Bacillus subtilis and antifungal activity against Aspergillus niger. Furthermore, compounds with more number of electron withdrawing groups showed higher antimicrobial activity. This result indicates that compounds 12b and 18b can be used as lead compounds in the future studies.