Total Synthesis of Enantiopure Phalarine via a Stereospecific Pictet−Spengler Reaction: Traceless Transfer of Chirality from <scp>l</scp>-Tryptophan
作者:John D. Trzupek、Dongjoo Lee、Brendan M. Crowley、Vasilios M. Marathias、Samuel J. Danishefsky
DOI:10.1021/ja1030968
日期:2010.6.23
undergoes conversion to a prephalarine structure in a single step. The reaction occurs in a diastereoselective fashion, leading shortly thereafter to the naturally occurring version of the alkaloid phalarine.
适当构建的 l-色氨酸的 2-取代衍生物可在一个步骤中转化为 prephalarine 结构。该反应以非对映选择性方式发生,此后不久导致天然存在的生物碱 phalarine 版本。