Towards the Total Synthesis of Pl-3: Preparation of the Eastern Fragment through a Diastereoselective SmI<sub>2</sub>-Mediated Reformatsky Reaction
作者:Rita Fürst、Christoph Lentsch、Uwe Rinner
DOI:10.1002/ejoc.201300148
日期:2013.4
The jatrophane diterpene Pl-3, isolated in 2003 from Euphorbia platyphyllos, is a structurally complex natural product with highly promising biological properties that include pronounced antiproliferative activity and the inhibition of the efflux-pump activity of multidrug resistance p-glycoprotein. Herein, the synthesis of the eastern fragment of Pl-3 is outlined. The target compound is synthesized
于2003年从大戟大戟中分离出的麻风树素二萜Pl-3是一种结构复杂的天然产物,具有非常有前途的生物学特性,包括明显的抗增殖活性和对多药耐药性p-糖蛋白的外排泵活性的抑制作用。在此,概述了P1-3的东部片段的合成。从容易获得的d-核糖开始,以九种合成操作以良好的总收率合成目标化合物。制备P1-3的东部的关键步骤是非对映选择性的SmI2介导的Reformatsky反应。拟议的路线是高度灵活的,也可以应用于结构相关的麻疯树二萜的合成。