Selective Synthesis of <b><i>ent</i></b>-15-<b><i>epi</i></b>-F<sub>2t</sub>-Isoprostane and a Deuterated Derivative
作者:Marc Snapper、Manami Shizuka
DOI:10.1055/s-2007-983768
日期:2007.7
Isoprostanes are an emerging class of lipid metabolites whose physiological properties are not well understood. The selective synthesis of ent-15-epi-F2t-isoprostane, an isomer active in a preliminary screening assay is described. The synthesis features a regioselective cross-metathesis on an enantiomerically enriched divinyl cyclopentyl intermediate to selectively differentiate the side-chains of the target. The route provides the isoprostane, as well as a d 4-labeled analogue, in 14 steps from readily available starting materials.
异构烷醇是一类新兴的脂质代谢产物,其生理特性尚不完全理解。本文描述了选择性合成在初步筛选实验中活跃的异构体 ent-15-epi-F2t-isoprostane 的过程。该合成采用了对称选择性交叉重排反应,基于手性富集的二乙烯环戊烯中间体,选择性区分了目标的侧链。这条合成路线从易得的起始材料出发,经过14个步骤,合成了异构烷醇及其一个 d4 标记的类似物。