Synthesis of benzimidazolyl-1,3,4-oxadiazol-2ylthio-N-phenyl (benzothiazolyl) acetamides as antibacterial, antifungal and antituberculosis agents

European Journal of Medicinal Chemistry
Rahul V PatelKishor H Chikhalia

Abstract

To affiliate multiple bioactivities in a compact heteronuclei, two series of benzimidazole based 1,3,4-oxadiazoles were synthesized and assessed in vitro for their efficacy as antimicrobial agents against eight bacteria (Staphylococcus aureus, Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Salmonella typhi, Proteus vulgaris, Shigella flexneri), four fungi (Aspergillus niger, Aspergillus fumigatus, Aspergillus clavatus, Candida albicans) and Mycobacterium tuberculosis H37Rv and best results were observed amongst the N-benzothiazolyl aetamide series. The lipophilicity (LogP) influence on the biological profile (MICs) of the prepared products was also discussed. Upon biological screening, it was observed that the majority of the compounds were found to possess a significant broad spectrum antimicrobial (3.12-25 μg/mL of MIC) and antitubercular (6.25-25 μg/mL of MIC) potential. The structural assignments of the new products were done on the basis of IR, (1)H NMR, (13)C NMR spectroscopy and elemental analysis.

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Related Concepts

Antibiotics, Antifungal
Antitubercular Agents
Filamentous fungus
Fungus Drug Sensitivity Tests
Mycobacterium tuberculosis H37Rv
Benzothiazoles
Organic Synthesis
Klebsiella pneumoniae
Antibiotics
Antibiotics, Antifungal

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