Easy Access to a Cyclic Key Intermediate for the Synthesis of Trisporic Acids and Related Compounds
作者:José González-Delgado、Gustavo Escobar、Jesús Arteaga、Alejandro Barrero
DOI:10.3390/molecules19021748
日期:——
The synthesis of a cyclohexane skeleton possessing different oxygenated functional groups at C-3, C-8 and C-9, and a D1,6-double bond has been accomplished in 10 steps with an overall 17% yield. This compound is a key intermediate for access to a wide range of compounds of the bioactive trisporoid family. The synthetic sequence consists of the preparation of a properly functionalized epoxygeraniol
在 C-3、C-8 和 C-9 上具有不同含氧官能团和 D1,6-双键的环己烷骨架的合成分 10 步完成,总产率为 17%。该化合物是获取多种生物活性三孢子体家族化合物的关键中间体。合成顺序包括制备适当官能化的环氧香叶醇衍生物,以及随后由 Ti(III) 介导的立体选择性环化。这最后一步意味着多米诺骨牌过程,从均裂环氧化物开环开始,然后是自由基环化和区域选择性消除。这种协同过程可以通过立体化学控制其六个碳原子中的五个来获得环己烷部分。