Dialkylimidazole inhibitors of Trypanosoma cruzi sterol 14α-demethylase as anti-Chagas disease agents
作者:Praveen Kumar Suryadevara、Kishore Kumar Racherla、Srinivas Olepu、Neil R. Norcross、Hari Babu Tatipaka、Jennifer A. Arif、Joseph D. Planer、Galina I. Lepesheva、Christophe L.M.J. Verlinde、Frederick S. Buckner、Michael H. Gelb
DOI:10.1016/j.bmcl.2013.08.015
日期:2013.12
New dialkylimidazole based sterol 14 alpha-demethylase inhibitors were prepared and tested as potential anti-Trypanosoma cruzi agents. Previous studies had identified compound 2 as the most potent and selective inhibitor against parasite cultures. In addition, animal studies had demonstrated that compound 2 is highly efficacious in the acute model of the disease. However, compound 2 has a high molecular weight and high hydrophobicity, issues addressed here. Systematic modifications were carried out at four positions on the scaffold and several inhibitors were identified which are highly potent (EC50 <1 nM)against T. cruzi in culture. The halogenated derivatives 36j, 36k, and 36p, display excellent activity against T. cruzi amastigotes, with reduced molecular weight and lipophilicity, and exhibit suitable physicochemical properties for an oral drug candidate. (C) 2013 Elsevier Ltd. All rights reserved.