Sibrafiban (C09-1170-696)

Sibrafiban (RO 48-3657) is the orally active, nonpeptide, double-proagent of Ro 44-3888 and a selective glycoprotein IIb/IIIa receptor antagonist. Sibrafiban inhibits platelet aggregationIn VitroThe effects of site occupancy by Sibrafiban on platelet activation are assessed using P-selectin expression, fibrinogen binding and microaggregate formation. Sibrafiban inhibits ADP and TRAP-stimulated fibrinogen binding and microaggregate formation in a concentration-dependent manner, whereas P-selectin expression is relatively unaltered. A decrease in site occupancy from peak to trough of Sibrafiban does not result in increased activation of platelets. MCE has not independently confirmed the accuracy of these methods. They are for reference only.In VivoThe effects of Ro 44-3888 on the platelet aggregation response to ADP (17 μmol) and on cutaneous bleeding times is determined in 8 rhesus monkeys given Sibrafiban 0.25 mg/kg/day or 0.5 mg/kg/day orally for 8 days. The maximum inhibition of ex vivo platelet aggregation and prolongation of bleeding time by Ro 44-3888 are dose dependent . MCE has not independently confirmed the accuracy of these methods. They are for reference only.Form:SolidIC50& Target:Glycoprotein IIb/IIIa receptor. Specifications and Purity: 99%. Molecular Formula: C20H28N4O6. Molecular Weight: 420.46. PubChem CID: 5491394. Isomeric SMILES: CCOC(=O)COC1CCN(CC1)C(=O)[C@H](C)NC(=O)C2=CC=C(C=C2)/C(=N\O)/N.