JTC-801 is a selective antagonist for the nociceptin receptor, also known as the ORL-1 receptor with a Ki of 8.2 nM. JTC-801 inhibited the binding of [(3)H]-nociceptin to human ORL(1) receptors expressed in HeLa cells with a K(i) value of 44.5 nM. JTC-801 (1 mg/kg, i.p.) blocked a significant proportion of the hypothermia caused by each dose of WIN 55212-2 (2.5, 5, and 10 mg/kg, i.p.). JTC-801 (1 mg/kg, i.p.) also blocked the hypothermia caused by another cannabinoid agonist, CP-55940 (1 mg/kg, i.p.). JTC-801 exhibits anti-nociceptive effects in acute pain models in vivo. JTC-801 reduced both the first and second phases of the nociceptive response with MED of 0.01 mg kg(-1) by i.v. administration or 1 mg kg(-1) by p.o. administration in the rat formalin test.
Molecular Weight | 447.96 |
Formula | C26H25N3O2.HCl |
CAS Number | 244218-51-7 |
Solubility (25°C) | DMSO 80 mg/mL |
Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
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