Ahsan MJ, Samy JG, Soni S, Jain N, Kumar L, Sharma LK, Yadav H, Saini L, Kalyansing RG, Devenda NS, Prasad R, Jain CB. Discovery of novel antitubercular 3a,4-dihydro-3H-indeno[1,2-c]pyrazole-2-carboxamide/carbothioamide analogues.
Bioorg Med Chem Lett 2011;
21:5259-61. [PMID:
21807509 DOI:
10.1016/j.bmcl.2011.07.035]
[Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 07/06/2011] [Accepted: 07/08/2011] [Indexed: 10/17/2022]
Abstract
In the present investigation, a series of 3a,4-dihydro-3H-indeno[1,2-c]pyrazole-2-carboxamide/carbothioamide analogues were synthesized and were evaluated for antitubercular activity by two fold serial dilution technique. All the newly synthesized compounds showed low to high inhibitory activities against Mycobacterium tuberculosis H(37)Rv and INH resistant M. tuberculosis. The compound 3-(4-fluorophenyl)-6,7-dimethoxy-3a,4-dihydro-3H-indeno[1,2-c]pyrazole-2-carbothioamide (4o) was found to be the most promising compound active against M. tuberculosis H(37)Rv and isoniazid resistant M. tuberculosis with minimum inhibitory concentration 3.12 μM and 6.25 μM, respectively.
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