A series of pyrrole–2–carboxamide derivatives (4a–j) were synthesized and evaluated for theirantibacterial activity. Among the tested compounds, the most effective were 4a, 4b, 4c, 4d, 4e, 4g and 4h with MIC value in the range of 1.05–12.01 μg/mL against Gram–positive and Gramnegativebacterial strains. Further, the synthesized compounds have been screened for their invitro antifungal activity. In the present study, design and expeditious synthesis of novel 1–(4–chlorobenzyl)–N–(4–methoxybenzyl)–1H–pyrrole–2–carboxamide hybrid molecules as promising antibacterial agents.

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Ten 5-bromoindole-2-carboxamides were synthesized, characterized and evaluated for antibacterial activity against pathogenic Gram-negative bacteria Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa and Salmonella Typhi using gentamicin and ciprofloxacin as internal standards. Compounds 7a–c, 7g and 7h exhibit high antibacterial activity with a minimum inhibitory concentration (MIC) of 0.35–1.25 μg/mL. Compounds 7a–c exhibit antibacterial activities that are higher than those of the standards against E. coli and P. aeruginosa.