De Saboulin Bollena Axelle, Gelas-Mialhe Yvonne, Gramain Jean-Claude, Perret Anne, Remuson Roland
Département de Chimie, UMR 6504, CNRS et Université Blaise Pascal (Clermont-Ferrand), 63177 Aubière, France.
J Nat Prod. 2004 Jun;67(6):1029-31. doi: 10.1021/np049902u.
An enantioselective and diastereoselective synthesis of six 5,7-dimethylindolizidine isomers is described via an intramolecular cyclization that involves an allylsilyl nucleophilic group and an acyliminium ion. The first total synthesis of naturally occurring (-)-dendroprimine has been achieved in five steps.
通过涉及烯丙基硅亲核基团和酰亚胺离子的分子内环化反应,描述了六种5,7-二甲基中氮茚异构体的对映选择性和非对映选择性合成。天然存在的(-)-树突素的首次全合成已通过五步实现。