Chemical syntheses of three kinds of potential metabolites of TRK-820, a potent κ-opioid receptor agonist, were described. One of the potential metabolites 2, 17-N-dealkylated TRK-820, was synthesized starting from noroxycodone through 8 steps in 21% total yield. Glucuronidation of intermediate 10 and compound 1, the free base of TRK-820, was carried out stereoselectively to give 3-O-β-D-glucuronides 15 and 16 in good yields, respectively. Syntheses of potential conjugated metabolites 3 and 4 were accomplished through 10 steps and 2 steps in 11% and 43% total yields, respectively. Among the potential metabolites of TRK-820, compounds 2 and 4 were identified as metabolites in human hepatocytes. The results of pharmacological studies of compounds 2, 3, and 4 are described.
描述了三种潜在的TRK-820代谢物的
化学合成,TRK-820是一种有效的κ-opioid受体激动剂。其中一种潜在代谢物2,17-N-去烷基TRK-820从noroxycodone出发通过8步合成,总产率为21%。对
中间体10和化合物1(TRK-820的游离碱)进行立体选择性
葡萄糖醛酸化,分别获得了良好产率的3-O-β-
D-葡萄糖醛酸酯15和16。潜在的结合代谢物3和4通过10步和2步合成,总产率分别为11%和43%。在TRK-820的潜在代谢物中,化合物2和4被确定为人肝细胞中的代谢物。描述了化合物2、3和4的药理学研究结果。