Total Synthesis of the Four Enantiomerically Pure Diasteroisomers of the Phytoprostanes E<sub>1</sub>Type II and of the 15-E<sub>2t</sub>-Isoprostanes
作者:Edith Pinot、Alexandre Guy、Anais Fournial、Laurence Balas、Jean-Claude Rossi、Thierry Durand
DOI:10.1021/jo702455g
日期:2008.4.1
Syntheses of the four enantiomerically pure diastereoisomers of the phytoprostanes E1 type II and 15-E2t-isoprostanes (1−4) are described. The key steps included the preparation of the Freïmanis (±)-hydroxycyclopentenone 5, enzymatic resolution of this racemic hydroxycyclopentenone, Wittig and Horner−Wadsworth−Emmons (HWE) coupling reactions and finally enantioselective reductions.
所述phytoprostanes的四个对映体纯非对映体的合成ë 1 II型和15-E 2吨-isoprostanes(1 - 4)中有所描述。关键步骤包括弗雷曼尼斯(±)-羟基环戊烯酮5的制备,该外消旋羟基环戊烯酮的酶促拆分,Wittig和Horner-Wadsworth-Emmons(HWE)偶联反应,最后是对映选择性还原。