作者:Chenchen Fu、Yuanbao Zhang、Jun Xuan、Chenlong Zhu、Bingnan Wang、Hanfeng Ding
DOI:10.1021/ol501423t
日期:2014.6.20
A concise and efficient approach for the diastereoselective total synthesis of salvileucalin C, as well as their biosynthetically related diterpenoids salvileucalin D, salvipuberulin, isosalvipuberulin, and dugesin B, has been reported for the first time. The key features of the strategy are based on a Beckwith–Dowd ring expansion, a tandem diastereoselective Stille coupling/debromination/desilylation/lactonization
首次报道了一种简单有效的非传统选择性合成Salvileucalin C及其生物合成相关的双萜类化合物Salvileucalin D,salvipuberulin,isoalalvipuberulin和dugesin B的方法。该策略的主要特征是基于Beckwith–Dowd环膨胀,串联非对映选择性Stille偶联/脱溴/去甲硅烷基化/内酯化反应,以及光诱导的电环收缩。