2p4i
From Proteopedia
Evolution of a highly Selective and Potent 2-(Pyridin-2-yl)-1,3,5-triazine Tie-2 Kinase Inhibitor
Overview
Inhibition of angiogenesis is a promising and clinically validated approach for limiting tumor growth and survival. The receptor tyrosine kinase Tie-2 is expressed almost exclusively in the vascular endothelium and is required for developmental angiogenesis and vessel maturation. However, the significance of Tie-2 signaling in tumor angiogenesis is not well understood. In order to evaluate the therapeutic utility of inhibiting Tie-2 signaling, we developed a series of potent and orally bioavailable small molecule Tie-2 kinase inhibitors with selectivity over other kinases, especially those that are believed to be important for tumor angiogenesis. Our earlier work provided pyridinyl pyrimidine 6 as a potent, nonselective Tie-2 inhibitor that was designed on the basis of X-ray cocrystal structures of KDR inhibitors 34 (triazine) and 35 (nicotinamide). Lead optimization resulted in pyridinyl triazine 63, which exhibited >30-fold selectivity over a panel of kinases, good oral exposure, and in vivo inhibition of Tie-2 phosphorylation.
About this Structure
2P4I is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Evolution of a highly selective and potent 2-(pyridin-2-yl)-1,3,5-triazine Tie-2 kinase inhibitor., Hodous BL, Geuns-Meyer SD, Hughes PE, Albrecht BK, Bellon S, Bready J, Caenepeel S, Cee VJ, Chaffee SC, Coxon A, Emery M, Fretland J, Gallant P, Gu Y, Hoffman D, Johnson RE, Kendall R, Kim JL, Long AM, Morrison M, Olivieri PR, Patel VF, Polverino A, Rose P, Tempest P, Wang L, Whittington DA, Zhao H, J Med Chem. 2007 Feb 22;50(4):611-26. Epub 2007 Jan 25. PMID:17253678 Page seeded by OCA on Sun May 4 12:20:30 2008
