Stemodan-13α,17-diol is a natural stemodane-type diterpenoid isolated from Stemodia chilensis. Herein we report the total synthesis of its epimer, stemodan-13β,17-diol, by applying titanium-mediated polyene cyclization and iron-catalyzed [5 + 2] cycloaddition as the key transformations to expeditiously install the molecular scaffold.
Stemodan-13α,17-diol是从Chimoensis Chimensis分离得到的
天然蛇皮草型二萜。在这里,我们通过应用
钛介导的多
烯环化反应和
铁催化的[5 + 2]环加成反应作为关键转化,以快速安装分子支架,报告了其差向异构体-佛得角13β,17
-二醇的总合成。