Roblitinib

• CAT Number: I013632
• CAS Number: 1708971-55-4
• Molecular Formula: C25H30N8O4
• Molecular Weight: 506.56
• Purity: ≥95%
• Synonyms: N-[5-cyano-4-(2-methoxyethylamino)pyridin-2-yl]-7-formyl-6-[(4-methyl-2-oxopiperazin-1-yl)methyl]-3,4-dihydro-2H-1,8-naphthyridine-1-carboxamide
• InChI: InChI=1S/C25H30N8O4/c1-31-7-8-32(23(35)15-31)14-18-10-17-4-3-6-33(24(17)29-21(18)16-34)25(36)30-22-11-20(27-5-9-37-2)19(12-26)13-28-22/h10-11,13,16H,3-9,14-15H2,1-2H3,(H2,27,28,30,36)
• InChIKey: BHKDKKZMPODMIQ-UHFFFAOYSA-N
• SMILES: CN1CCN(C(=O)C1)CC2=C(N=C3C(=C2)CCCN3C(=O)NC4=NC=C(C(=C4)NCCOC)C#N)C=O

Roblitinib (FGF-401) is an orally active and highly selective FGFR4 inhibitor with an IC50 of 1.9 nM[1]. Roblitinib has antitumor activity[2].
Roblitinib (FGF-401; Compound Example 83) is a highly selective and potent FGFR4 inhibitor (IC50= 1.9 nM)[1].
Roblitinib shows no activity FGFR1, FGFR2, FGFR3, rat FGFR4, C552A FGFR4 (all IC50>10 uM)[1].
Roblitinib inhibits HUH7 (IC50=12 nM), Hep3B (IC50=9 nM), JHH7 (IC50=9 nM), HEPG2 (IC50>10 uM), JHH (IC50>10 uM)[1].
Roblitinib (gavage; 10-100 mg/kg; b.i.d.; for 10 days) with the 30 mg/kg has the maximal level of inhibition of FGFR4-dependent tumor growth in the Hep3B xenograft model[1].
Roblitinib causes blood concentrations dropped below the IC90 threshold level within 8 h of dosing, and controlles tumor growth to the level of stasis at the lowest dose of 10 mg/kg for 6 days[1].
Roblitinib (iv at 1 mg/kg; po at 3 mg/kg) has a T1/2 of 1.4 hours, a CL of 28 mL/min•kg, and a Vss of 2.3 L/kg for Male mice (C57BL/6) [1].
Roblitinib (iv at 0.5 mg/kg; po at 3 mg/kg) has a T1/2 of 4.4 hours, a CL of 19 mL/min•kg, and a Vss of 3.9 L/kg for male SD rats[1].

Reference

[1]. Nicole Buschmann, et al. Ring-fused bicyclic pyridyl derivatives as fgfr4 inhibitors. WO2015059668A1.

[2]. Robin A Fairhurst, et al. Discovery of Roblitinib (FGF401) as a Reversible-Covalent Inhibitor of the Kinase Activity of Fibroblast Growth Factor Receptor 4. J Med Chem. 2020 Nov 12;63(21):12542-12573.
 [Content Brief]