Stepinonine (1) was chemically converted to O-methylrepandine (2) and O-methyloxyacanthine (3) via N, O-dimethyltetrahydrostepinonine (17) which was subjected to oxidation with Jones' reagent, followed by reduction with Zn-AcOH and NaBH4.
Stepinonine (1) 通过 N,O-二甲基四氢 Stepinonine (17)
化学转化为 O-甲基瑞潘丁 (2) 和 O-甲氧基
黄嘌呤 (3),再用琼斯试剂进行氧化,然后用 Zn-AcOH 和 NaBH4 还原。