作者:HongWei Shi、JianLong Li、YueMeng Liu、ZuoLing Du、ZhiYan Huang、Na Zhao、Nan Li、Jun Yang
DOI:10.1016/j.tet.2016.07.040
日期:2016.9
This article reported an eight steps formal total synthesis of (−)-kainic acid in 16% overall yield from an enantiopure starting material. The key transformations include an efficient tandem N-allylation/SN2′ reaction to construct the 2,3-trans-3,4-cis tri-substituted pyrrolidine and a HgCl2-promoted methanolysis of 1,4-benzodithia-fulvene to furnish the ester group.
本文报道了从对映体纯原料以16%的总收率完成(-)-海藻酸的八步正式全合成。密钥变换包括一种有效串联的N-烯丙基化/ S Ñ 2'反应以构建2,3-反式-3,4-顺三取代的吡咯烷和氯化汞2 1,4- benzodithia-富烯的促进的以甲醇分解提供酯基。