Application of the 2-Azaallyl Anion Cycloaddition Method to an Enantioselective Total Synthesis of (+)-Coccinine
作者:William H. Pearson、Brian W. Lian
DOI:10.1002/(sici)1521-3773(19980703)37:12<1724::aid-anie1724>3.0.co;2-8
日期:1998.7.3
A highly functionalized perhydroindole is formed by the intramolecular [π4s+π2s] cycloaddition of a 2-azaallyl anion with a vinyl sulfide [Eq. (a)]. This is the key step in the total synthesis of (+)-coccinine, the enantiomer of the Amaryllidaceae alkaloid (-)-coccinine.
高度官能化的全氢吲哚是通过2-氮杂烯丙基阴离子与乙烯基硫化物的分子内[π4s+π2s]环加成反应形成的。(一种)]。这是(+)-可可碱的合成中的关键步骤,这是金盏花科生物碱(-)-可可碱的对映异构体。