2′ Biaryl amides as novel and subtype selective M1 agonists. Part I: Identification, synthesis, and initial SAR

Biaryl amides were discovered as novel and subtype selective M-1 muscarinic acetylcholine receptor agonists. The identification, synthesis, and initial structure-activity relationships that led to compounds 3j and 4c, possessing good M1 agonist potency and intrinsic activity, and subtype selectivity for M1 over M2-5, are described. (C) 2010 Elsevier Ltd. All rights reserved.