single step a homoisotwistane derivative 17, which was converted to a ketone 22. Both (±)-patchouli alcohol 1 and (±)-seychellene 2 were synthesized using reactions at the bridgehead position (C-7) of a bicyclo[3.3.1]nonan-2-one system contained in 22.
共轭
环己烯酮衍
生物16的碱催化环化仅一步即可提供高异
异丁烷衍
生物17,其被转化为酮22。(±)-广cho香醇1和(±)-雪chel烯2均使用22中包含的双环[3.3.1] nonan-2-one系统在桥头位置(C-7)的反应合成。