Description
SU-4312 (5812-07-7) is a potent selective inhibitor of VEGFR kinase (also known as Flk-1 and KDR). Inhibition of the activated kinase (IC50 = 0.4 μM) is 100-fold less than inhibition of the unactivated kinase (IC50 = 0.04 μM). SU-4312 also inhibits PDGFR kinase (IC50 = 19.4 μM).
Uses
SU 4312 is a vascular endothelial growth factor receptor KDR tyrosine kinase antagonist.
Definition
ChEBI: A member of the class of oxindoles that is 3-methyleneoxindole in which one of the hydrogens of the methylene group has been replaced by a p-(dimethylamino)phenyl group. SU 4312 is a vascular endothelial growth factor (VEGF) receptor protein
yrosine kinase 1/2 and platelet derived growth factor (PDGF) receptor inhibitor. It also inhibits the neuronal nitric oxide synthase (NOS) and exhibits neuroprotection against NO-mediated neurotoxicity.
Biological Activity
Potent and selective inhibitor of VEGFR and PDGFR tyrosine kinases (IC 50 values are 0.8 and 19.4 mM respectively). Selective over EGFR and c-Src tyrosine kinases.
References
1) Kendall et al. (1999), Vascular endothelial growth factor receptor KDR tyrosine kinase activity is increased by autophosphorylation of two activation loop tyrosine residues; J. Biol. Chem., 274 6453
2) Sun et al. (1998), Synthesis and biological evaluations of 3-substituted indolin-2-ones: a novel class of tyrosine kinase inhibitors that exhibit selectivity toward particular receptor tyrosine kinases; J. Med. Chem., 41 2588
