Facile synthesis, antimicrobial screening and docking studies of pyrrole-triazole hybrids as potential antimicrobial agents

The insurgence in microbial resistance has led to urgent requirement of new and upgraded antimicrobial agents with new biological targets, higher potency, cost-effectiveness and low toxicity. The present work describes the synthesis and antimicrobial screening of some pyrrole 1,2,3-triazole hybrids bearing chalcone and amide scaffolds. The antimicrobial screening results revealed that all the synthesized pyrrole 1,2,3-triazoles (5a-5n) exhibited higher efficacy than the pyrrole-chalcones (2a-2b) towards the tested strains. Compounds 5k (MIC = 1.56 mu g/mL) and 5l (MIC = 1.56 mu g/mL) displayed highest potency toward E. coli which is equivalent to standard ciprofloxacin (MIC = 1.56 mu g/mL). The docking of 5k within the active sites of E. coli DNA gyrase (PDB: 1KZN) and C. albicans sterol 14 alpha-demethylase (PDB: 5TZ1) exhibited good interaction with binding energy of - 123.224 and - 114.278 kcal/mol, respectively