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编 号:F118679
分子式:C26H31N3O4
分子量:449.54
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10mM*1mL in DMSO
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1mg
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5mg
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10mg
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25mg
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50mg
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100mg
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生物活性:
Fuscoside (OPC-21268) is an orally effective, nonpeptide, vasopressin V1 receptor antagonist with an IC50 of 0.4 μM.

体内研究:
Fuscoside (OPC-21268) competitively and specifically antagonizes pressor responses to AVP in vivo. Oral administration of Fuscoside (OPC-21268) (10 mg/kg) inhibits the vasoconstriction induced by exogenous AVP in a dose- and time-dependent manner and the effect lasts for more than 8 hours at 30 mg/kg. Fuscoside (OPC-21268) predominantly exerts a protective effect in areas where the maximum amount of blood-brain barrier breakdown occurs, and it is effective in the treatment of cold-induced vasogenic brain edema. Fuscoside (OPC-21268) treatment at the dosages of 200 and 300 mg/kg significantly reduces brain water content in both hemispheres. Swelling of the traumatized hemispheres is also significantly reduced at 200 and 300 mg/kg dosages.

体外研究:
The concentration of Fuscoside (OPC-21268) that displaces 50% of specific AVP binding (IC50) is 0.4 μM for VI receptors and 100 μM for V2 receptors. The inhibition constant (Ki) of Fuscoside (OPC-21268) for V1 receptors (0.14 μM).
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