Substituted imidazopyrimidine, imidazopyrazine and imidazopyridazine derivatives as melanocortin-4 receptor modulators
申请人:Santhera Pharmaceuticals (Schweiz) AG
公开号:EP2103614A1
公开(公告)日:2009-09-23
The present invention relates to substituted imidazopyrimidine derivatives, substituted imidazopyrazine derivatives and substituted imidazopyridazine derivatives as melanocortin-4 receptor (MC-4R) modulators, in particular as melanocortin 4 receptor antagonists. The antagonists are useful for the treatment of disorders and diseases such as cancer cachexia, muscle wasting, anorexia, emesis, anxiety, amytrophic lateral sclerosis and depression.
Discovery of Potent, Selective, Orally Bioavailable Stearoyl-CoA Desaturase 1 Inhibitors
作者:Gang Liu、John K. Lynch、Jennifer Freeman、Bo Liu、Zhili Xin、Hongyu Zhao、Michael D. Serby、Philip R. Kym、Tom S. Suhar、Harriet T. Smith、Ning Cao、Ruojing Yang、Rich S. Janis、Joel A. Krauser、Steven P. Cepa、David W. A. Beno、Hing L. Sham、Christine A. Collins、Teresa K. Surowy、Heidi S. Camp
DOI:10.1021/jm070219p
日期:2007.6.1
Stearoyl-CoA desaturase 1 (SCD1) catalyzes the committed step in the biosynthesis of monounsaturated fatty acids from saturated, long-chain fatty acids. Studies with SCD1 knockout mice have established that these animals are lean and protected from leptin deficiency-induced and diet-induced obesity, with greater whole body insulin sensitivity than wild-type animals. In this work, we have discovered a series of potent, selective, orally bioavailable SCD1 inhibitors based on a known pyridazine carboxamide template. The representative lead inhibitor 28c also demonstrates excellent cellular activity in blocking the conversion of saturated long-chain fatty acid-CoAs (LCFA-CoAs) to monounsaturated LCFA-CoAs in HepG2 cells.