Unified Approach to ent-Eudesmane-Type Terpenoid Synthesis: Total Synthesis of Sinupol and Eutyscoparin A
作者:Koichiro Ota、Hiroaki Miyaoka、Kazuo Kamaike
DOI:10.1055/a-1643-5729
日期:2022.2
ent-Eudesmane-type terpenoids constitute a large class of natural products derived from plants, animals, and bacteria. We describe a synthetic approach to two ent-eudesmane-type terpenoids, sinupol and eutyscoparin A, that relies on a key π-facial- and endo/exo-selective intramolecular Diels–Alder reaction to set the C-5–C-10 stereotriads. Further key transformations of trans-fused decalin include
ent-Eudesmane 型萜类化合物是一大类来源于植物、动物和细菌的天然产物。我们描述了两种 ent-eudesmane 型萜类化合物的合成方法,sinupol 和 eutyscoparin A,它依赖于关键的 π-面部和内/外选择性分子内 Diels-Alder 反应来设置 C-5-C-10 立体三联体. 反式融合十氢萘的进一步关键转化包括通过多功能硫酯中间体转化为甲基酮和对目标化合物进行适当的官能化。