A General Organocatalytic Approach toward the Enantioselective Total Synthesis of Indolizidine Based Alkaloids
作者:Falko Abels、Chris Lindemann、Eva Koch、Christoph Schneider
DOI:10.1021/ol302871u
日期:2012.12.7
Four indolizidine based alkaloids (IBAs) have been synthesized in a highly enantioselective, straightforward, and flexible manner. As a key step our previously developed Brønsted acid catalyzed vinylogous Mannich reaction was employed which easily afforded gram amounts of an optically pure central intermediate which can be converted into a wide range of diversely substituted IBAs.
已经以高度对映选择性,简单和灵活的方式合成了四种基于吲哚并立定的生物碱(IBA)。作为关键步骤,我们使用了先前开发的布朗斯台德酸催化的乙烯基曼尼希反应,可轻松提供克量的光学纯中心中间体,可将其转化为多种多样的取代IBA。