H3B-6527

H3B-6527 is a highly selective covalent FGFR4 inhibitor with an IC50 value of <1.2 nM and at least 250-fold selectivity over FGFR1-3 (IC50 values of 320, 1,290 and 1,060 nM respectively).

Product information

CAS Number: 1702259-66-2

Molecular Weight: 629.54

Formula: C29H34Cl2N8O4

Chemical Name: N-{2-[(6-{[(2,6-dichloro-3,5-dimethoxyphenyl)carbamoyl](methyl)amino}pyrimidin-4-yl)amino]-5-(4-ethylpiperazin-1-yl)phenyl}prop-2-enamide

Smiles: CN(C1C=C(NC2C=CC(=CC=2NC(=O)C=C)N2CCN(CC2)CC)N=CN=1)C(=O)NC1C(Cl)=C(C=C(OC)C=1Cl)OC

InChiKey: MBWRLLRCTIYXDW-UHFFFAOYSA-N

InChi: InChI=1S/C29H34Cl2N8O4/c1-6-25(40)35-20-14-18(39-12-10-38(7-2)11-13-39)8-9-19(20)34-23-16-24(33-17-32-23)37(3)29(41)36-28-26(30)21(42-4)15-22(43-5)27(28)31/h6,8-9,14-17H,1,7,10-13H2,2-5H3,(H,35,40)(H,36,41)(H,32,33,34)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Solubility (25°C). 50 mg/mL(79.42 mM). Insoluble.

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

H3B-6527 shows robust inhibition of the target kinase FGFR4 with an IC50 value of <1.2 nmol/L and at least 250-fold selectivity over FGFR1-3 (IC50 values of 320, 1,290 and 1,060 nmol/L respectively). TAOK2, JNK2, and CSF1R are also less sensitive to H3B-6527 treatment with IC50 values of 690, >10,000, and >10,000 nmol/L, respectively. H3B-6527 inhibits FGFR4 signaling, proliferation, and leads to apoptosis in a HCC cell line (Hepatocellular carcinoma). Treatment on Hep3B cells leads to robust activation of caspase-3/7, an apoptotic marker, in a concentration-dependent manner, indicating FGFR4 inhibition by H3B-6527 leads to cell death in HCC cell lines. H3B-6527 has the selectivity and the selective dependence on FGFR4 across cancer types.

In Vivo:

In the Hep3B human HCC xenograft mouse model, H3B-6527 shows dose-proportional plasma exposures and greater than dose-proportional tumor exposures within the dose range evaluated (30, 100, and 300 mg/kg). The H3B-6527 pharmacodynamic response as measured by CYP7A1 mRNA and pERK1/2 protein levels is dose dependent, with higher doses leading to sustained responses. Oral treatment of H3B-6527, twice daily, inhibits xenograft growth in a dose-dependent manner in nude mice, with the 300 or 100 mg/kg twice daily, significantly inhibiting tumor growth in both Hep3B subcutaneous and orthotopic xenograft model and causing tumor regressions in the subcutaneous xenograft model. Palbociclib can enhance H3B-6527 efficacy and promote tumor regression in JHH-7 model where H3B-6527 as a single agent can only lead to tumor stasis.

Products are for research use only. Not for human use.