ChemicalBook--->CAS DataBase List--->228559-41-9

228559-41-9

228559-41-9 Structure

228559-41-9 Structure
IdentificationBack Directory
[Name]

Ki8751
[CAS]

228559-41-9
[Synonyms]

Ki8751
CS-532
Ki8751, >=98%
Ki8751 hydrate
KI 8751; KI-8751
Ki8751 USP/EP/BP
KI8751;KI 8751;KI-8751
VEGFR2 Kinase Inhibitor VI, Ki8751
VEGFR2 Kinase Inhibitor VI, Ki8751 - CAS 228559-41-9 - Calbiochem
1-(2,4-difluorophenyl)-3-(4-(6,7-diMethoxyquinolin-4-yloxy)-2-fluorophenyl)urea
N-(2,4-Difluorophenyl)-N'-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]urea
Urea, N-(2,4-difluorophenyl)-N'-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]-
1-(2,4-Difluoro-phenyl)-3-[4-(6,7-dimethoxy-quinolin-4-yloxy)-2-fluoro-phenyl]-urea hydrate
N-(2,4-Difluorophenyl)-N'-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]urea KI8751
[Molecular Formula]

C24H18F3N3O4
[MDL Number]

MFCD09971092
[MOL File]

228559-41-9.mol
[Molecular Weight]

469.417
Chemical PropertiesBack Directory
[Melting point ]

239℃
[density ]

1.429
[storage temp. ]

−20°C
[solubility ]

Soluble in DMSO (15 mg/ml)
[form ]

Off-white solid
[color ]

White
[Stability:]

Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
[InChI]

1S/C24H18F3N3O4/c1-32-22-11-15-20(12-23(22)33-2)28-8-7-21(15)34-14-4-6-19(17(27)10-14)30-24(31)29-18-5-3-13(25)9-16(18)26/h3-12H,1-2H3,(H2,29,30,31)
[InChIKey]

LFKQSJNCVRGFCC-UHFFFAOYSA-N
[SMILES]

Fc1c(ccc(c1)F)NC(=O)Nc2c(cc(cc2)Oc3c4c(ncc3)cc(c(c4)OC)OC)F
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

22-38
[Safety Statements ]

37
[WGK Germany ]

WGK 1
[Storage Class]

11 - Combustible Solids
Hazard InformationBack Directory
[Description]

Ki8751 (228559-41-9) is a very potent (IC50 = 0.9 nM) inhibitor of vascular endothelial growth factor receptor 2 (VEGFR-2).1 It also inhibited PDGFRα (IC50 = 67 nM), c-Kit (IC50 = 40 nM), and FGFR2 (IC50 = 170 nM). Ki8751 completely suppressed HUVEC growth at 1 nM. Ki8751 completely inhibited tumor growth in LC-6 human tumor xenografts @ 5mg/kg. Ki8751 displayed anti-influenza A and B activity via disruption of virus entry in a PDGFR?/GM3-dependent manner.2
[Uses]

Ki8751 is a potent and selective inhibitor of VEGFR2, PDGFRα and c-Kit with IC50 of 0.9 nM, 67 nM and 40 nM, respectively.
[Definition]

ChEBI: 1-(2,4-difluorophenyl)-3-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]-2-fluorophenyl]urea is an aromatic ether.
[General Description]

A cell-permeable quinolyloxyphenyl-urea compound that acts as a VEGFR-2-selective inhibitior in both cell-based (IC50 = 0.9 nM in VEGF-induced receptor phosphorylation) and cell-free (IC50 = 4.0 nM in kinase reactions) assays. It inhibits c-Kit, PDGFRα, and FGFR-2 only at much higher concentrations (IC50 = 40, 67, and 170 nM, respectively, in cell-based assays), while exhibiting no effect against eight other commonly studied receptor and non-receptor kinases even at concentrations as high as 10 μM. Effectively blocks VEGF-dependent, but not VEGF-independent, cell proliferation in vitro and tumor growth in mice and rats (5 to 20 mg/kg, daily p.o.) in vivo.
[Biological Activity]

Potent, selective inhibitor of VEGFR-2 tyrosine kinase (IC 50 = 0.9 nM). Displays some inhibitory activity towards c-Kit, PDGFR α and FGFR-2 (IC 50 values range from 40 to 170 nM) but is highly selective over other receptor tyrosine kinases (IC 50 > 10000 nM for FGFR-2, EGFR and HGFR). Inhibits VEGF-stimulated proliferation of human umbilical vein endothelial cells (HUVEC) and inhibits tumor growth in vivo ; antiangiogenic.
[storage]

Store at +4°C
[References]

Kubo et al. (2005), Novel potent orally active selective VEGFR-2 tyrosine kinase inhibitors: synthesis, structure-activity relationships, and antitumor activities of N-phenyl-N’{4-(4-quinolyloxy)phenyl}ureas; J. Med. Chem. 48 1359 Vrijens et al. (2019), Influenza virus entry via the GM3 ganglioside-mediated platelet-derived growth factor receptor b signaling pathway; J. Gen. Virol. 100 583
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