Total Synthesis of the Unusual Monoterpenoid Indole Alkaloid (±)-Alstilobanine A
作者:Yiqing Feng、Max M. Majireck、Steven M. Weinreb
DOI:10.1002/anie.201207949
日期:2012.12.14
Tetracyclic monoterpene alkaloid alstilobanine A was obtained in racemic form. The pivotal steps of the totalsynthesis are a novel conjugate addition of an ester enolate with a nitrosoalkene, as well as a formal [2+2] intramolecularcycloaddition leading to a β‐lactone to generate the requisite cis‐fused 2‐azadecalin moiety of the alkaloid. TMSE=trimethylsilylethoxy, Ts=4‐toluenesulfonyl.