Discovery of a novel series of quinolone α7 nicotinic acetylcholine receptor agonists
作者:Ivar M. McDonald、Robert A. Mate、F. Christopher Zusi、Hong Huang、Debra J. Post-Munson、Meredith A. Ferrante、Lizbeth Gallagher、Robert L. Bertekap、Ronald J. Knox、Barbara J. Robertson、David G. Harden、Daniel G. Morgan、Nicholas J. Lodge、Steven I. Dworetzky、Richard E. Olson、John E. Macor
DOI:10.1016/j.bmcl.2013.01.070
日期:2013.3
High throughput screening led to the identification of a novel series of quinolone alpha 7 nicotinic acetylcholine receptor (nAChR) agonists. Optimization of an HTS hit (1) led to 4-phenyl-1-(quinuclidin-3-ylmethyl)quinolin-2(1H)-one, which was found to be potent and selective. Poor brain penetrance in this series was attributed to transporter-mediated efflux, which was in turn due to high pK(a). A novel 4-fluoroquinuclidine significantly lowered the pK(a) of the quinuclidine moiety, reducing efflux as measured by a Caco-2 assay. (C) 2013 Elsevier Ltd. All rights reserved.