[摘要]：A new family of quinolinone derivatives has been synthesized and evaluated for their antikinetoplastid activities against Leishmania donovani and Trypanosoma brucei brucei. Results from these structure activity relationship studies enabled identification of compounds 3a and 4g as the most active compounds against L. donovani promastigotes and amastigotes parasites (IC(50) values in a range of 2-11 mu M). Additionally, compound 3b has emerged from this study as the most active compound in the series against T. b. brucei with a MEC value of 12 mu M. These three compounds are worth of further in vivo evaluation. (C) 2012 Elsevier Masson SAS. All rights reserved.
