Discovery of 8-azabicyclo[3.2.1]octan-3-yloxy-benzamides as selective antagonists of the kappa opioid receptor. Part 1
作者:Todd A. Brugel、Reed W. Smith、Michael Balestra、Christopher Becker、Thalia Daniels、Tiffany N. Hoerter、Gerard M. Koether、Scott R. Throner、Laura M. Panko、James J. Folmer、Joseph Cacciola、Angela M. Hunter、Ruifeng Liu、Philip D. Edwards、Dean G. Brown、John Gordon、Norman C. Ledonne、Mark Pietras、Patricia Schroeder、Linda A. Sygowski、Lee T. Hirata、Anna Zacco、Matthew F. Peters
DOI:10.1016/j.bmcl.2010.07.113
日期:2010.10
Initial high throughput screening efforts identified highly potent and selective kappa opioid receptor antagonist 3 (kappa IC50 = 77 nM; mu:kappa and mu:kappa IC50 ratios >400) which lacked CNS exposure in vivo. Modification of this scaffold resulted in development of a series of 8-azabicyclo[ 3.2.1]octan-3-yloxy-benzamides showing potent and selectivity kappa antagonism as well as good brain exposure. Analog 6c (kappa IC50 = 20 nM; mu:kappa = 36, delta:kappa = 415) was also shown to reverse kappa-agonist induced rat diuresis in vivo. (C) 2010 Published by Elsevier Ltd.