Discovery and optimization of a highly efficacious class of 5-aryl-2-aminopyridines as FMS-like tyrosine kinase 3 (FLT3) inhibitors
作者:Gang Liu、Sunny Abraham、Xing Liu、Shimin Xu、Allison M. Rooks、Ron Nepomuceno、Alan Dao、Daniel Brigham、Dana Gitnick、Darren E. Insko、Michael F. Gardner、Patrick P. Zarrinkar、Ron Christopher、Barbara Belli、Robert C. Armstrong、Mark W. Holladay
DOI:10.1016/j.bmcl.2015.07.023
日期:2015.9
Based on a putative binding mode of quizartinib (AC220, 1), a potent FMS-like tyrosine kinase 3 (FLT3) inhibitor in Phase III clinical development, we have designed de novo a simpler aminopyridine-based hinge binding motif. Further optimization focusing on maximizing in vivo efficacy and minimizing CYP3A4 time-dependent inhibition resulted in a highly efficacious compound (6s) in tumor xenograft model for further preclinical development. (C) 2015 Elsevier Ltd. All rights reserved.