Synthesis and SAR investigations of novel 2-arylbenzimidazole derivatives as melanin-concentrating hormone receptor 1 (MCH-R1) antagonists
作者:Chae Jo Lim、Nakjeong Kim、Eun Kyoung Lee、Byung Ho Lee、Kwang-Seok Oh、Sung-eun Yoo、Kyu Yang Yi
DOI:10.1016/j.bmcl.2011.02.099
日期:2011.4
Compounds containing 2-arybenzimidazole ring systems linked to arylpiperidines were synthesized and evaluated as MCH-R1 antagonists. The results of structure-activity relationship studies led to the identification of compound 4c as a potent MCH-R1 antagonist (IC50 = 1 nM). This compound also has good metabolic stability, and favorable pharmacokinetic and brain penetration properties. However 4c was found to be potent inhibitor of the hERG potassium channel. (C) 2011 Elsevier Ltd. All rights reserved.