作者:Singanaboina Rajaram、Udugu Ramulu、Dasari Ramesh、Peddikotla Prabhakar、Yenamandra Venkateswarlu
DOI:10.1002/hlca.201200631
日期:2013.11
An efficient stereoselective total synthesis of the bioactive 14‐membered natural macrocyclic bislactone 4‐ketoclonostachydiol is described. The strategy involves a Jacobsen's hydrolytic kinetic resolution (HKR), epoxide opening, MacMillan α‐hydroxylation, HornerWadsworthEmmons olefination, a Grignard reaction, and HoveydaGrubbs‐II‐catalyzed ring‐closing metathesis (RCM) as key steps.
描述了一种有效的立体选择性全合成生物活性的14元天然大环双内酯4-酮克隆龙胆酚。该策略涉及雅各布森的水解动力学拆分(HKR),环氧化物开环,麦克米兰α羟基化,霍纳沃兹沃思埃蒙斯烯化,一个格利雅反应,并加入Hoveyda 格鲁布斯- II -催化的闭环复分解(RCM)的关键脚步。