Novel pyrrolo[2,1-f][1,2,4]triazin-4-amines: Dual inhibitors of EGFR and HER2 protein tyrosine kinases

A novel series of 5-((4-aminopiperidin-1-yl) methyl)-pyrrolo[ 2,1-f][ 1,2,4] triazin-4-amines with small aniline substituents at the C4 position were optimized for dual EGFR and HER2 protein tyrosine kinase inhibition. Compound 81 exhibited promising oral efficacy in both EGFR and HER2-driven human tumor xenograft models. (C) 2010 Elsevier Ltd. All rights reserved.