作者:Tetsutaro Kimachi、Eri Torii、Rina Ishimoto、Ayako Sakue、Motoharu Ju-ichi
DOI:10.1016/j.tetasy.2009.06.025
日期:2009.7
Starting from a reduced lapachol compound, the total synthesis of rhinacanthin A in both racemic and enantioenriched forms is achieved in eight steps without forming any undesired β-lapachone derivatives. For the synthesis of enantioenriched rhinacanthin A, the introduction of the asymmetric center was carried out by using the catalytic asymmetric epoxidation of an unfunctional trisubstituted olefin
从还原的拉帕酚化合物开始,消旋形式和对映体富集形式的鼠李素A的总合成可在八个步骤中完成,而不会形成任何不希望的β-拉帕酮衍生物。为了合成对映体富集的Rhinecanthin A,通过使用Shi's环氧化二缩酮催化剂对未官能化的三取代烯烃进行催化不对称环氧化来引入不对称中心。对衍生的对映体富集的环氧萘酚进行酸性处理,然后进行CAN氧化,可得到具有高对映体纯度的目标分子。