Thiazole–aminopiperidine hybrid analogues: Design and synthesis of novel Mycobacterium tuberculosis GyrB inhibitors
作者:Variam Ullas Jeankumar、Janupally Renuka、Peddi Santosh、Vijay Soni、Jonnalagadda Padma Sridevi、Priyanka Suryadevara、Perumal Yogeeswari、Dharmarajan Sriram
DOI:10.1016/j.ejmech.2013.09.025
日期:2013.12
A series of ethyl-4-(4-((substituted benzyl)amino)piperidin-1-yl)-2-(phenyl/pyridyl)thiazole-5-carboxy lates was designed by molecular hybridization and synthesized from aryl thioamides in five steps. The compounds were evaluated for their in vitro Mycobacterium smegmatis (MS) GyrB ATPase assay, Mycobacterium tuberculosis (MTB) DNA gyrase super coiling assay, antituberculosis activity and cytotoxicity. Among the twenty four compounds studied, ethyl-4-(44(4-fluorobenzypamino)piperidin-1-y1)-2-phenylthiazole-5-carboxylate (14) was found to be the promising compound which showed activity against all test with MS GyrB IC50 of 24.0 +/- 2.1 mu M, 79% inhibition of MTB DNA gyrase at 50 tM, MTB MIC of 28.44 mu M, and not cytotoxic at 50 mu M. (C) 2013 Elsevier Masson SAS. All rights reserved.