After desilylation, 26-hydroxy group was replaced with mesyl group, followed by bromination and dehydrobromination to finish the construct of C-25 (26) double bond.
接着C-26位去保护后经甲磺酰基取代、溴代、脱去溴化氢,从而完成C-25(26)双键的构筑。
参考来源 - 利用薯蓣皂甙元完整骨架形式合成1α,25·2,447,543篇论文数据,部分数据来源于NoteExpress
应用推荐