Novel pyrrolidine melanin-concentrating hormone receptor 1 antagonists with reduced hERG inhibition
作者:Brian M. Fox、Reina Natero、Kevin Richard、Richard Connors、Philip M. Roveto、Holger Beckmann、Katrin Haller、Justin Golde、Shou-Hua Xiao、Frank Kayser
DOI:10.1016/j.bmcl.2011.02.046
日期:2011.4
We discovered novel pyrrolidine MCHR1 antagonist 1 possessing moderate potency. Profiling of pyrrolidine 1 demonstrated that it was an inhibitor of the hERG channel. Investigation of the structure–activity relationship of this class of pyrrolidines allowed us to optimize the MCHR1 potency and decrease the hERG inhibition. Increasing the acidity of the amide proton by converting the benzamide in lead
我们发现新型吡咯烷MCHR1拮抗剂1具有中等效力。吡咯烷1的分析表明它是hERG通道的抑制剂。此类吡咯烷类的结构与活性之间的关系研究使我们能够优化MCHR1效能并降低hERG抑制作用。通过将铅1中的苯甲酰胺转化为苯胺来增加酰胺质子的酸度,可提供一位数的纳摩尔级MCHR1拮抗剂,同时用具有增强极性的烷基取代1的二甲氧基苯基环可大大降低hERG抑制作用。