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ID: ALA3877302

Journal: J Med Chem

Title: Design and Synthesis of a New Series of 4-Heteroarylamino-1'-azaspiro[oxazole-5,3'-bicyclo[2.2.2]octanes as α7 Nicotinic Receptor Agonists. 1. Development of Pharmacophore and Early Structure-Activity Relationship.

Authors: Cook J, Zusi FC, McDonald IM, King D, Hill MD, Iwuagwu C, Mate RA, Fang H, Zhao R, Wang B, Cutrone J, Ma B, Gao Q, Knox RJ, Matchett M, Gallagher L, Ferrante M, Post-Munson D, Molski T, Easton A, Miller R, Jones K, Digavalli S, Healy F, Lentz K, Benitex Y, Clarke W, Natale J, Siuciak JA, Lodge N, Zaczek R, Denton R, Morgan D, Bristow LJ, Macor JE, Olson RE.

Abstract: The design and synthesis of a series of quinuclidine-containing spirooxazolidines ("spiroimidates") and their utility as α7 nicotinic acetylcholine receptor partial agonists are described. Selected members of the series demonstrated excellent selectivity for α7 over the highly homologous 5-HT3A receptor. Modification of the N-spiroimidate heterocycle substituent led to (1S,2R,4S)-N-isoquinolin-3-yl)-4'H-4-azaspiro[bicyclo[2.2.2]octane-2,5'oxazol]-2'-amine (BMS-902483), a potent α7 partial agonist, which improved cognition in preclinical rodent models.

CiteXplore: 27958732

DOI: 10.1021/acs.jmedchem.6b01506