作者:Jia-Sen Liu、Yong Tao
DOI:10.1016/s0040-4020(01)89869-0
日期:1992.1
Manwuweizic acid (1), an anticancer triterpenoid isolated from Scisandra propinqua, was synthesized from lanosterol (2) by stereoselective introduction of the (Z) α,β-unsaturated carboxylic terminal of the side chain and by abnormal Beckmann rearrangement of ring A. A new reagent of DMSO-DCC-TFA for protection of a carboxyl group as a methylthiomethyl (MTM) ester is also described.
通过从侧链立体选择性引入侧链的(Z)α,β-不饱和羧酸末端和环A的异常贝克曼重排,从羊毛甾醇(2)合成从五味子中提取的抗癌三萜类化合物Manwuweizic acid(1)。还描述了用于保护羧基的DMSO-DCC-TFA的新试剂,即甲硫基甲基(MTM)酯。