Synthesis and antitubercular activity of monocyclic nitroimidazoles: Insights from econazole
作者:Sang-Ho Lee、Suhyun Kim、Min-Han Yun、Yong Sup Lee、Sang-Nae Cho、Taegwon Oh、Pilho Kim
DOI:10.1016/j.bmcl.2010.12.128
日期:2011.3
We have designed and synthesized econazole-derived nitroimidazoles to investigate the antitubercular activity of the nitroimidazole compounds. The introduction of a nitro group at the 4-position of the imidazole on econazole abolished the antitubercular activity. However, alcoholic nitroimidazoles 4 and 6 compounds were active against Mycobacterium tuberculosis (Mtb). While the MIC value of econazole was 16 mu g/mL, the MIC of 6a and 6f turned out to be 0.5 mu g/mL. In particular, the activity of 6f against non-replicating Mtb was as good as PA-824, which is currently in clinical phase II studies as an antitubercular agent. Overall, alcohol compounds 4 and 6 tend to be more active than ether compounds 5 and 7. (C) 2010 Elsevier Ltd. All rights reserved.