For research use only. Not for therapeutic Use.
FIIN-2 is an irreversible inhibitor of FGFR with an IC50 of 3.1, 4.3, 27, and 45 nM for FGFR1, FGFR2, FGFR3 and FGFR4, respectively.
FIIN-2 potently inhibits WT FGFRs (EC50s in the 1- to 93-nM range) and the gatekeeper mutant of FGFR2 (EC50 of 58 nM). FIIN-2 also moderately inhibits EGFR, with an IC50 of 204 nM. FIIN-2 inhibits proliferation of FGFR1-4 Ba/F3 cells with EC50s in the single- to double-digit nanomolar range and are especially potent against FGFR2, with EC50s in the 1-nM range. FIIN-2 shows good potency against gatekeeper mutant V564F[1].
Treatment of fish in the embryonic state with either FIIN-2 causes defects to the posterior mesoderm similar to the phenotypes reported following genetic knockdown of FGFR or treatment with other reported FGFR inhibitors. FIIN-2 causes mild or severe phenotypes to the tail morphogenesis in all treated embryonic zebrafish[1].
| Catalog Number | I002122 |
| CAS Number | 1633044-56-0 |
| Synonyms | N-[4-[[3-(3,5-dimethoxyphenyl)-7-[4-(4-methylpiperazin-1-yl)anilino]-2-oxo-4H-pyrimido[4,5-d]pyrimidin-1-yl]methyl]phenyl]prop-2-enamide |
| Molecular Formula | C35H38N8O4 |
| Purity | ≥95% |
| InChI | InChI=1S/C35H38N8O4/c1-5-32(44)37-26-8-6-24(7-9-26)22-43-33-25(23-42(35(43)45)29-18-30(46-3)20-31(19-29)47-4)21-36-34(39-33)38-27-10-12-28(13-11-27)41-16-14-40(2)15-17-41/h5-13,18-21H,1,14-17,22-23H2,2-4H3,(H,37,44)(H,36,38,39) |
| InChIKey | DVBPRWJMHURKHP-UHFFFAOYSA-N |
| SMILES | CN1CCN(CC1)C2=CC=C(C=C2)NC3=NC=C4CN(C(=O)N(C4=N3)CC5=CC=C(C=C5)NC(=O)C=C)C6=CC(=CC(=C6)OC)OC |
| Reference | [1]. Tan L, et al. Development of covalent inhibitors that can overcome resistance to first-generation FGFR kinase inhibitors. Proc Natl Acad Sci U S A. 2014 Nov 11;111(45):E4869-4877. |
