Wang H B, Mayer R, Rücker G
Pharmaceutical Institute, Bonn University, F.R.G.
Phytochemistry. 1993 Nov;34(5):1389-94. doi: 10.1016/0031-9422(91)80035-y.
On the basis of spectroscopic and chemical methods, the structures of two new bisdesmosidic triterpenoid glycosides, named staunoside D and E, which were isolated from Stauntonia hexaphylla, were established as 3-O-(beta-D-glucopyranosyl(1-->2)-[beta-D- glucopyranosyl(1-->3)]-beta-D-glucopyranosyl)-hederagenin-28- O-[beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranosyl] ester and 28-O-[alpha-L-rhamnopyranosyl (1-->4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranosyl]ester, respectively. Three known triterpenoid glycosides were also isolated. A new proglycoside was isolated from the cleavage of the ester-glycosidic linkage and its structure characterized.
基于光谱和化学方法，从六叶野木瓜中分离得到了两种新的双糖苷三萜类化合物，分别命名为野木瓜苷D和E，其结构分别确定为3 - O -（β - D - 吡喃葡萄糖基（1→2） - [β - D - 吡喃葡萄糖基（1→3）] - β - D - 吡喃葡萄糖基） - 常春藤皂苷元 - 28 - O - [β - D - 吡喃葡萄糖基（1→6） - β - D - 吡喃葡萄糖基]酯和28 - O - [α - L - 鼠李吡喃糖基（1→4） - β - D - 吡喃葡萄糖基（1→6） - β - D - 吡喃葡萄糖基]酯。还分离得到了三种已知的三萜类糖苷。从酯糖苷键的裂解产物中分离得到了一种新的前体糖苷，并对其结构进行了表征。
