Discovery of amide replacements that improve activity and metabolic stability of a bis-amide smoothened antagonist hit
                                
                                    
                                        作者:Matthew L. Brown、Wade Aaron、Richard J. Austin、Angela Chong、Tom Huang、Ben Jiang、Jacob A. Kaizerman、Gary Lee、Brian S. Lucas、Dustin L. McMinn、Jessica Orf、Minqing Rong、Maria M. Toteva、Guifen Xu、Qiuping Ye、Wendy Zhong、Michael R. DeGraffenreid、Dineli Wickramasinghe、Jay P. Powers、Randall Hungate、Michael G. Johnson                                    
                                    
                                        DOI:10.1016/j.bmcl.2011.07.052
                                    
                                    
                                        日期:2011.9
                                    
                                    A bis-amide antagonist of Smoothened, a seven-transmembrane receptor in the Hedgehog signaling pathway, was discovered via high throughput screening. In vitro and in vivo experiments demonstrated that the bis-amide was susceptible to N-acyl transferase mediated amide scission. Several bioisosteric replacements of the labile amide that maintained in vitro potency were identified and shown to be metabolically stable in vitro and in vivo. (C) 2011 Elsevier Ltd. All rights reserved.