Total Synthesis of (+)- and (−)-Decursivine and (±)-Serotobenine through a Cascade Witkop Photocyclization/Elimination/Addition Sequence: Scope and Mechanistic Insights
作者:Weimin Hu、Hua Qin、Yuxin Cui、Yanxing Jia
DOI:10.1002/chem.201204137
日期:2013.2.25
synthesis of not only racemic decursivine and serotobenine, but also enantiopure (+)‐ and (−)‐decursivine and a variety of their analogues. The present syntheses represent the shortest pathway for the total synthesis of decursivine and serotobenine to date. Moreover, the newly developed cascade sequence for the total synthesis of decursivine does not need any protecting steps. The scope and the reaction
在本文中,介绍了抗疟疾化合物去甲锡藤及其生物学上无活性的同型血清素的总合成方法。首先研究了(±)-serotobenine的仿生合成,但没有成功。在随后的其他合成路线研究中,我们发现了新的级联Witkop光环化/消除/加成序列,该序列不仅能使外消旋的十碳体和血清型贝宁,而且对映体(+)-和(-)-十碳体和一个对映体纯合子的合成成为可能。各种各样的类似物。目前的合成方法代表了迄今为止全合成十倍体藤黄素和血清素联苯胺的最短途径。而且,新开发的用于癸二烯全合成的级联序列不需要任何保护步骤。还研究了级联序列的范围和反应机理。