Semi-Synthesis and Cellular Effects of Three Different Ginsenosides Derived from Re, Rh1, and PPT
作者:Hongda Ding、Yanping Chen、Shuang Chen、Man Man Li、Zhao Yi Tan、Zhen Yao Lu、Pengfei Zhang、Wei Gao、Yan Xu、Fangfei Xu、Zhicai Wang
DOI:10.1007/s10600-019-02615-9
日期:2019.1
3β,12β,25-Trihydroxydammar-(E/Z)-20(22)-ene-6-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside, 3β,2β,25-trihydroxydammar-(E/Z)-20(22)-ene-6-O-β-D-glucopyranoside, and dammar-20(22)-ene-3,6,12,25-tetrol(3β,6β,12β,20E/Z) were synthesized from the ginsenosides Re, Rh1, and PPT, respectively, via a simple three-step process involving acetylation, elimination-addition, and saponification. We obtained the detailed structures of these compounds by 1D and 2D NMR, and by HR-ESI-MS. Among them, dammar-20(22)-ene-3,6,12,25-tetrol(3β,6β,12β,20Z) was identified as a new triterpenoid ginsenoside. The cytotoxic and hemolytic effects of these compounds towards cancer cells and erythrocytes were also evaluated.
通过简单的三步反应过程,包括乙酰化、消除-加成和皂化反应,分别从人参皂苷Re、Rh1和PPT合成了3β,12β,25-三羟基达玛-(E/Z)-20(22)-烯-6-O-α-L-鼠李糖苷-(1→2)-β-D-葡萄糖苷、3β,2β,25-三羟基达玛-(E/Z)-20(22)-烯-6-O-β-D-葡萄糖苷以及达玛-20(22)-烯-3,6,12,25-四醇(3β,6β,12β,20E/Z)。我们通过1D和2D NMR以及HR-ESI-MS获得了这些化合物的详细结构信息。其中,达玛-20(22)-烯-3,6,12,25-四醇(3β,6β,12β,20Z)被鉴定为一种新的三萜皂苷。我们还评估了这些化合物对癌细胞和红细胞的细胞毒性和溶血效应。