The first synthesis (seven steps) of the bis(indole) marine alkaloid caulersin is described. Construction of the central seven-membered ring is based on a Michael-type addition of the appropriate 2,3′-bis(indolyl)ketone to methylvinylketone followed by intramolecular nucleophilic substitution of the resulting 3-oxoalkylated product.
描述了双(
吲哚)海洋
生物碱考勒素的第一次合成(七个步骤)。中心七元环的构建基于适当的 2,3'-双(
吲哚基)酮与甲基
乙烯基酮的迈克尔型加成,然后对所得 3-氧代烷基化产物进行分子内亲核取代。