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ID: ALA1146951
Journal: Bioorg Med Chem Lett
Title: Structure-guided identification of novel VEGFR-2 kinase inhibitors via solution phase parallel synthesis.
Authors: Tripathy R, Reiboldt A, Messina PA, Iqbal M, Singh J, Bacon ER, Angeles TS, Yang SX, Albom MS, Robinson C, Chang H, Ruggeri BA, Mallamo JP.
Abstract: 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 inhibition eliminated several of the probes. Identification of an 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.
CiteXplore: 16460933