Synthesis of benzimidazolyl-1,3,4-oxadiazol-2ylthio-N-phenyl (benzothiazolyl) acetamides as antibacterial, antifungal and antituberculosis agents
作者:Rahul V. Patel、Paresh K. Patel、Premlata Kumari、Dhanji P. Rajani、Kishor H. Chikhalia
DOI:10.1016/j.ejmech.2012.03.033
日期:2012.7
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 fumigants, Aspergillus clavatus, Candida albicans) and Mycobacterium tuberculosis H37Rv and best results were observed amongst the N-benzothiazolylaetamide 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 mu g/mL of MIC) and antitubercular (6.25-25 mu g/mL of MIC) potential. The structural assignments of the new products were done on the basis of IR, H-1 NMR, C-13 NMR spectroscopy and elemental analysis. (C) 2012 Elsevier Masson SAS. All rights reserved.