PF-04418948

• CAT Number: I000351
• CAS Number: 1078166-57-0
• Molecular Formula: C₂₃H₂₀FNO₅
• Molecular Weight: 409.41
• Purity: ≥95%
• Synonyms: 1-(4-fluorobenzoyl)-3-(((6-methoxynaphthalen-2-yl)oxy)methyl)azetidine-3-carboxylic acid
• Target: Prostanoid Receptors
• Solubility: 10 mM in DMSO
• Storage: Store at -20C
• IC50: 16 nM
• InChI: 1S/C23H20FNO5/c1-29-19-8-4-17-11-20(9-5-16(17)10-19)30-14-23(22(27)28)12-25(13-23)21(26)15-2-6-18(24)7-3-15/h2-11H,12-14H2,1H3,(H,27,28)
• InChIKey: LWJGMYMNSNVCEM-UHFFFAOYSA-N
• SMILES: COC1=CC2=C(C=C1)C=C(C=C2)OCC3(CN(C3)C(=O)C4=CC=C(C=C4)F)C(=O)O

PF-04418948 is a novel, potent and selective prostaglandin EP2 receptor antagonist with IC50 of 16 nM, displays >2000-fold functional selectivity for the human EP2 receptor over antagonist activity against the human EP1, EP3, EP4, DP1 and CRTH2 receptors.IC50 value: 16 nMTarget: EP2in vitro: PF-04418948 inhibits prostaglandin E2 (PGE2)-induced increase in cAMP in cells expressing EP2 receptors with a functional KB value of 1.8 nM. In human myometrium, PF-04418948 produced a parallel, rightward shift of the butaprost-induced inhibition of the contractions induced by electrical field stimulation with an apparent KB of 5.4 nM. [1]in vivo: In dog bronchiole and mouse trachea, PF-04418948 produced parallel rightward shifts of the PGE2-induced relaxation curve with a KB of 2.5 nM and an apparent KB of 1.3 nM respectively. Reversal of the PGE2-induced relaxation in the mouse trachea by PF-04418948 produced an IC50 value of 2.7 nM. Given orally, PF-04418948 attenuated the butaprost-induced cutaneous blood flow response in rats. [1] PF-04418948 competitively inhibits relaxations of murine and guinea pig trachea induced by ONO-AE1-259 and PGE2 respectively.[2]

Reference

1:Selectivity profiling of the novel EP2 receptor antagonist, PF-04418948, in functional bioassay systems: atypical affinity at the guinea pig EP2 receptor. Birrell MA, Maher SA, Buckley J, Dale N, Bonvini S, Raemdonck K, Pullen N, Giembycz MA, Belvisi MG.Br J Pharmacol. 2013 Jan;168(1):129-38. doi: 10.1111/j.1476-5381.2012.02088.x. PMID: 22747912 Free PMC Article2:In vitro and in vivo characterization of PF-04418948, a novel, potent and selective prostaglandin EP₂ receptor antagonist. af Forselles KJ, Root J, Clarke T, Davey D, Aughton K, Dack K, Pullen N.Br J Pharmacol. 2011 Dec;164(7):1847-56. doi: 10.1111/j.1476-5381.2011.01495.x. Erratum in: Br J Pharmacol. 2012 Jun;166(3):1192. Dosage error in article text. PMID: 21595651 Free PMC Article