A Concise Formal Total Synthesis of Mappicine and Nothapodytine B via an Intramolecular Hetero Diels−Alder Reaction
作者:Masahiro Toyota、Chiyo Komori、Masataka Ihara
DOI:10.1021/jo000816i
日期:2000.10.1
A six-step formal total synthesis of a natural alkaloid, mappicine (3), has been achieved. The highlight of our synthetic strategy is an intramolecular hetero Diels-Alder reaction that was used for the construction of the CD ring system of mappicine (3). In addition, it was demonstrated that the Sonogashira coupling reaction of 2-chloro-3-hydroxymethylquinoline (8c) with trimethylsilylacetylene proceeded
已经完成了天然生物碱马皮甲碱的六步正式全合成(3)。我们合成策略的亮点是分子内杂Diels-Alder反应,该反应用于构建甲哌丙啶的CD环系统(3)。另外,已证明2-氯-3-羟甲基喹啉(8c)与三甲基甲硅烷基乙炔的Sonogashira偶联反应在室温下以优异的产率进行。