Total Synthesis of (–)-Anaferine: A Further Ramification in a Diversity-Oriented Approach
作者:Elisa Bonandi、Giada Tedesco、Dario Perdicchia、Daniele Passarella
DOI:10.3390/molecules25051057
日期:——
stereoselective total synthesis of (–)-anaferine, a bis-piperidine alkaloid present in Withania somnifera extract. This natural product was obtained in 9% overall yield over 13 steps, starting from a key homoallylic alcohol previously synthesised in our laboratory. Therefore, the collection of piperidine-derivatives accessible from 2-piperidine ethanol was enriched with a new, diverse scaffold.
哌啶环是几种植物和海洋来源的天然生物活性生物碱中普遍存在的基序。在过去的几年中,我们的研究小组开发了一种面向多样性的合成 (DOS) 方法,旨在生成基于哌啶的衍生物库,采用市售的 2-哌啶乙醇作为通用前体。在这里,我们报告了对我们的 DOS 方法的另一个分支的探索,这使我们对 (-)-anaferine 进行了立体选择性全合成,这是一种存在于睡茄提取物中的双哌啶生物碱。从我们实验室先前合成的关键高烯丙醇开始,经过 13 个步骤,以 9% 的总收率获得了这种天然产物。因此,可从 2-哌啶乙醇中获得的哌啶衍生物的集合中富含一种新的、