Evolution of a Strategy for Total Synthesis of the Marine Fungal Alkaloid (±)-Communesin F
作者:Jae Hong Seo、Peng Liu、Steven M. Weinreb
DOI:10.1021/jo100339k
日期:2010.4.16
A new synthetic strategy for construction of the heptacyclic marine fungal alkaloid (±)-communesin F has been devised. Key reactions include an intramolecular Heck cyclization of a tetrasubstituted alkene to generate a tetracyclic enamide bearing one of the quaternary carbon centers (C7) of the alkaloid, an intramolecular reductive cyclization of an N-Boc aniline onto the oxindole moiety to form a
已经设计了一种用于构建七环海洋真菌生物碱 (±)-communesin F 的新合成策略。关键反应包括四取代烯烃的分子内 Heck 环化以生成带有生物碱季碳中心 (C7) 之一的四环烯酰胺,N- Boc 苯胺在羟吲哚部分上的分子内还原环化以形成五环骨架南氨基,立体选择性N - Boc-内酰胺烯醇化C-烯丙基化以引入第二季碳中心 (C8),叠氮化物还原/ N -Boc-内酰胺-开放级联通向北氨基。