Structure-guided identification of novel VEGFR-2 kinase inhibitors via solution phase parallel synthesis
作者:Rabindranath Tripathy、Alyssa Reiboldt、Patricia A. Messina、Mohamed Iqbal、Jasbir Singh、Edward R. Bacon、Thelma S. Angeles、Shi X. Yang、Mark S. Albom、Candy Robinson、Hong Chang、Bruce A. Ruggeri、John P. Mallamo
DOI:10.1016/j.bmcl.2006.01.063
日期:2006.4
Structural analysis of the essential binding elements of the oxindole-based kinase inhibitor (1) led to the identification of a novel class of heterocyclic-substituted pyrazolones. Knoevenagel condensation of a variety of activated methylene nucleophiles with indole or pyrrole carboxaldehydes provided a focused library of molecules, each containing elements of kinase pharmacophore probe. Initial screening for VEGFR-2 kinase inhibit ion eliminated several of the probes. Identification of ail active pyrazolone motif and further optimization resulted in several highly potent VEGFR-2 inhibitors with cellular efficacy, anti-angiogenic activity ex vivo in rat aortic ring explant cultures, and oral anti-tumor efficacy in nude mice. (C) 2006 Elsevier Ltd. All rights reserved.