Discovery of a novel melanin concentrating hormone receptor 1 (MCHR1) antagonist with reduced hERG inhibition
作者:Jeffrey T. Mihalic、Pingchen Fan、Xiaoqi Chen、Xi Chen、Ying Fu、Alykhan Motani、Lingming Liang、Michelle Lindstrom、Liang Tang、Jin-Long Chen、Juan Jaen、Kang Dai、Leping Li
DOI:10.1016/j.bmcl.2012.04.006
日期:2012.6
identification of the novel, potent MCHR1 antagonist 2. After further profiling, compound 2 was discovered to be a potent inhibitor of the hERG potassium channel, which prevented its further development. Additional optimization of this structure resulted in the discovery of the potent MCHR1 antagonist 11 with a dramatically reduced hERG liability. The decrease in hERG activity was confirmed by several
最初的SAR研究导致了新型有效的MCHR1拮抗剂2的鉴定。进一步分析后,发现化合物2是hERG钾通道的有效抑制剂,阻止了其进一步发展。该结构的其他优化导致发现了具有显着降低的hERG耐受性的有效MCHR1拮抗剂11。多项体内临床前心血管研究检查了QT延长,证实了hERG活性的降低。该化合物对MCHR1表现出良好的选择性,并且在整个临床前物种中均具有良好的药代动力学特性。化合物11在两种体内小鼠模型中,在减轻体重方面也是有效的。选择该化合物进行临床评估,并赋予其代码AMG 076。