RLY-4008 free base · Synonyms: Lirafugratinib
RLY-4008 is a novel potent and highly selective FGFR2 inhibitor designed to overcome the emergence of on-target FGFR2 resistance mutations and…
For research use only. Not for human or veterinary use.
RLY-4008 structure
CAS No.: 2549174-42-5
Pack sizes & pricing
Description
RLY-4008 is a novel potent and highly selective FGFR2 inhibitor designed to overcome the emergence of on-target FGFR2 resistance mutations and dose-limiting toxicities associated with current pan-FGFR inhibitors. RLY-4008 is > 200-fold selective over FGFR1, and > 80- and > 5000-fold selective over FGFR3 and FGFR4, respectively.
Biological activity
In Vitro Lirafugratinib (RLY-4008) has >250-fold selectivity over FGFR1, and >80- and >5,000-fold selectivity over FGFR3 and FGFR4, respectively. The reversible binding of Lirafugratinib promotes a rigid and extended P-loop in FGFR1 that disfavors covalent bond formation while minimally affecting the conformation of the P-loop in FGFR2, enabling efficient covalent bond formation and leading to FGFR2 selectivity. Lirafugratinib (24h) induces dose-dependent cleavage of caspase-3 and poly (ADP-ribose) polymerase (PARP)-early markers of apoptosis. Lirafugratinib (2h) demonstrates a dose-dependent reduction of phosphorylation of FGFR2 signaling pathway nodes, including FRS2, AKT, and ERK. RLY-4008 inhibits cellular proliferation with IC50<14 nM in FGFR2-dependent cell lines including KATO III, SNU-16 and NCI-H716, ICC13-7, and MFE-296, FGFR2N549K and AN3CA, FGFR2K310R; N549K and JHUEM-2, FGFR2C383R. In Vivo Lirafugratinib (RLY-4008; 1-30 mg/kg; orally, twice daily; 15-30 days) demonstrates antitumor activity in FGFR2-altered cancer xenograft models.
Identifiers
- SMILES
-
C=C(C)C(NC1=CC=C(C2=C(C3=CC=C(OC4=NC=CC(C)=N4)C(F)=C3)C5=C(N)N=CN=C5N2C)C=C1)=O - InChIKey
-
XOQVZSSDIQQUGO-UHFFFAOYSA-N
Specifications
- MW (average)
- 509.5343
- Formula
- C28H24FN7O2
- CAS No.
- 2549174-42-5
- Physical state
- Solid
- Color
- Off-white to light yellow
- Shipping
- Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
- Storage
- Powder -20℃ 3 years; In solvent -20℃ 1 month;
Solubility
Soluble in DMSO 62.5 mg/mL
Documents
References
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