IRBM—Merck Research Laboratories Rome, Via Pontina km 30,600, Pomezia 00040, Rome, Italy
Abstract:
We report the synthesis and biological evaluation of N-(1-aryl-1H-indazol-5-yl)methyl]amide derivatives as Smoothened antagonists and inhibitors of the Hedgehog pathway. Identification of the lead structure 1 by HTS, followed by SAR study on the amide and aryl portions led to the discovery of antagonists with nanomolar activity.