Substituted Imidazole-pyrazole clubbed scaffolds: Microwave assisted Synthesis and Examined their In-vitro Antimicrobial and Antituberculosis Effects

Abstract

A series of substituted imidazole-pyrazole fused compounds were designed & fused synthesized by employing Debus-Radziszewski one-pot synthesis reaction. Azoles are an extensive and comparatively new class of synthetic com-pounds including imidazoles and pyrazoles.The current clinical treatment uses compounds of azole framework. Azoles act by inhibiting ergosterol synthesis path way (a principal component of the fungal cell wall). In addition, a literature review shows that the compounds that include imidazoles and pyrazoles have significant anti-bacterial and anti-mycobacterial ef-fects. In light of the above findings, a series of compounds with imidazole and pyrazole scaffolds were sketched and devel-oped to examine anti-bacterial, antifungal and anti-mycobacterial activity. The structures of the synthesized compounds were characterized using 1HNMR, 13CNMR, elemental analysis, and MS spectral data. The target compounds were screened for their in-vitro antimicrobial activity against gram-positive and gram-negative bacterial species by disc diffusion method according to the NCCLS (National Committee for Clinical Laboratory Standards) and anti-mycobacterial activity against the Mycobacterium tuberculosis H37Rv strain.The results revealed that imidazole-pyrazole fused scaffold compounds have po-tential anti-bacterial, antifungal and anti-mycobacterial activity which can be further optimized to get a lead compound.