Linifanib

Linifanib
Clinical data

ATC code	None
Legal status
Legal status	Investigational
Identifiers
IUPAC name 1-[4-(3-amino-1H-indazol-4-yl)phenyl]-3-(2-fluoro-5-methylphenyl)urea
CAS Number	606143-52-6
PubChem CID	11485656
IUPHAR/BPS	5657
ChemSpider	9660475^Y
UNII	CO93X137CW
KEGG	D09635^Y
ChEBI	CHEBI:91435
ChEMBL	CHEMBL223360^Y
ECHA InfoCard	100.206.772
Chemical and physical data
Formula	C₁₇H₁₅FN₅O
Molar mass	375.41 g/mol
3D model (JSmol)	Interactive image
SMILES CC1=CC(=C(C=C1)F)NC(=O)NC2=CC=C(C=C2)C3=C4C(=CC=C3)NN=C4N
InChI InChI=1S/C21H18FN5O/c1-12-5-10-16(22)18(11-12)25-21(28)24-14-8-6-13(7-9-14)15-3-2-4-17-19(15)20(23)27-26-17/h2-11H,1H3,(H3,23,26,27)(H2,24,25,28) Key:MPVGZUGXCQEXTM-UHFFFAOYSA-N

Linifanib (ABT-869) is a structurally novel, potent inhibitor of receptor tyrosine kinases (RTK), vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF) with IC₅₀ of 0.2, 2, 4, and 7 nM for human endothelial cells, PDGF receptor beta (PDGFR-β), KDR, and colony stimulating factor 1 receptor (CSF-1R), respectively. It has much less activity (IC50s > 1 μM) against unrelated RTKs, soluble tyrosine kinases, or serine/threonine kinases. In vivo linifanib is effective orally in mechanism-based murine models of VEGF-induced uterine edema (ED50 = 0.5 mg/kg) and corneal angiogenesis (>50%inhibition, 15 mg/kg).

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