Discovery of (<i>R</i>)-(2-Fluoro-4-((-4-methoxyphenyl)ethynyl)phenyl) (3-Hydroxypiperidin-1-yl)methanone (ML337), An mGlu<sub>3</sub> Selective and CNS Penetrant Negative Allosteric Modulator (NAM)
作者:Cody J. Wenthur、Ryan Morrison、Andrew S. Felts、Katrina A. Smith、Julie L. Engers、Frank W. Byers、J. Scott Daniels、Kyle A. Emmitte、P. Jeffrey Conn、Craig W. Lindsley
DOI:10.1021/jm400439t
日期:2013.6.27
A multidimensional, iterative parallel synthesis effort identified a series of highly selective mGlu(3) NAMs with submicromolar potency and good CNS penetration. Of these, ML337 resulted (mGlu(3) IC50 = 593 nM, mGlu(2) IC50 >30 mu M) with B:P ratios of 0.92 (mouse) to 0.3 (rat). DMPK profiling and shallow SAR led to the incorporation of deuterium atoms to address a metabolic soft spot, which subsequently lowered both in vitro and in vivo clearance by >50%.