Optimization of a series of 4,6-bis-anilino-1H-pyrrolo[2,3-d]pyrimidine inhibitors of IGF-1R: Elimination of an acid-mediated decomposition pathway
作者:Stanley D. Chamberlain、Anikó M. Redman、Samarjit Patnaik、Keith Brickhouse、Yen-Chiat Chew、Felix Deanda、Roseanne Gerding、Huangshu Lei、Ganesh Moorthy、Mark Patrick、Kirk L. Stevens、Joseph W. Wilson、J. Brad Shotwell
DOI:10.1016/j.bmcl.2008.11.065
日期:2009.1
Initial evaluation of a series 4,6-bis-anilino-1H-pyrrolo[2,3-d]pyrimidines revealed a C(10) carboxamide was preferred for sub-micromolar in vitro potency against IGF-1R. Subsequent solution stability studies with 1 revealed a susceptibility toward acid-induced intramolecular cyclization with the C(10) carboxamide. Herein, we describe several successful approaches toward generating both potent and acid-stable inhibitors of IGF-1R within the 4,6-bis-anilino-1H-pyrrolo[2,3-d]pyrimidine template. (C) 2008 Elsevier Ltd. All rights reserved.