Development of benzo[d]oxazol-2(3H)-ones derivatives as novel inhibitors of Mycobacterium tuberculosis InhA

Autor: Shailendra K. Saxena, Janupally Renuka, Variam Ullas Jeankumar, Perumal Yogeeswari, Ganesh S. Pedgaonkar, Parthiban Brindha Devi, Jonnalagadda Padma Sridevi, Dharmarajan Sriram
Rok vydání: 2014
Předmět:
Zdroj: Bioorganicmedicinal chemistry. 22(21)
ISSN: 1464-3391
Popis: A series of twenty seven substituted 2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide derivatives were designed based on our earlier reported Mycobacterium tuberculosis (MTB) enoyl-acyl carrier protein reductase (InhA) lead. Compounds were evaluated for MTB InhA inhibition study, in vitro activity against drug-sensitive and -resistant MTB strains, and cytotoxicity against RAW 264.7 cell line. Among the compounds tested, 2-(6-nitro-2-oxobenzo[d]oxazol-3(2H)-yl)-N-(5-nitrothiazol-2-yl)acetamide (30) was found to be the most promising compound with IC50 of 5.12 ± 0.44 μM against MTB InhA, inhibited drug sensitive MTB with MIC 17.11 μM and was non-cytotoxic at 100 μM. The interaction with protein and enhancement of protein stability in complex with compound 30 was further confirmed biophysically by differential scanning fluorimetry.
Databáze: OpenAIRE