作者:Weiguo Quan、Binxun Yu、Jiyong Zhang、Qiren Liang、Xuegong She、Xinfu Pan
DOI:10.1016/j.tet.2007.07.053
日期:2007.10
The facile total synthesis of the (−)-Heliconol A (ent-1) as well as its diastereoisomer 18 is described, in which different reaction sequences lead to different results. The osmylation of 15 followed by hydrolysis afforded a single isomer 18, otherwise, a mixture of ent-1 and 18 resulted. Other important processes include the catalytic asymmetric CBS reduction and induced osmylation. The synthesis
描述了(-)-Heliconol A(ent - 1)及其非对映异构体18的简便全合成,其中不同的反应序列导致不同的结果。进行15的osmylation处理,然后进行水解,得到单一的异构体18;否则,生成ent - 1和18的混合物。其他重要过程包括催化不对称CBS还原和诱导的osmylation。合成进行与11层的步骤的序列,得到ENT - 1在9.0%和18分别在22%的总收率。