Novel 2-(2′-furo[3,2-b]pyridinyl) pyrrolidines: potent neuronal nicotinic acetylcholine receptor ligands
作者:Richard L. Elliott、Keith B. Ryther、David J. Anderson、Marietta Piattoni-Kaplan、Theresa A. Kuntzweiler、Diana Donnelly-Roberts、Stephen P. Arneric、Mark W. Holladay
DOI:10.1016/s0960-894x(97)10080-4
日期:1997.11
A novel series of 2-(2'-furo[3,2-b]pyridinyl) pyrrolidines has been synthesized and evaluated as novel nicotinic acetylcholine receptor ligands. Changing the pyrrolidine stereochemistry and N-substitution pattern afforded analogs with K-i values ranging from 2.7 to 97 nM. Rubidium efflux studies revealed that these compounds had intrinsic activities ranging from 9-58% that of nicotine in the IMR-32 cell line and 6-81% in the K177 cell line. The N(Me)-2(S) analog 3a demonstrated good selectivity in the K177 cell line (alpha(4) beta(2) receptor) versus the IMR-32 cells (alpha(3) beta(x) receptor) and TE 671 cells (alpha(1) neuromuscular receptor), and was a partial agonist with an EC50 value of 141 nM in dopamine release assay using rat striatal slices. (C) 1997 Elsevier Science Ltd.