Total Synthesis of (+)-Aspidospermidine: A New Strategy for the Enantiospecific Synthesis of Aspidosperma Alkaloids
作者:Joseph P. Marino、Maria B. Rubio、Ganfeng Cao、Alfonso de Dios
DOI:10.1021/ja026357f
日期:2002.11.1
strategy was developed for the enantiospecific synthesis of aspidosperma alkaloids. The key steps involve a novel ketene-lactonization reaction of a chiral vinyl sulfoxide to efficiently set up the quaternary carbon center, and a tandem Michael addition-alkylation reaction sequence to form the polycyclic core structure. This new strategy was employed in the total synthesis of natural product (+)-aspidospermidine
为无花果生物碱的对映特异性合成开发了一种新策略。关键步骤包括手性乙烯基亚砜的新型烯酮-内酯化反应以有效建立季碳中心,以及串联迈克尔加成-烷基化反应序列以形成多环核心结构。这种新策略用于天然产物 (+)-aspidospermidine 的全合成。