Burger I, Burger B V, Albrecht C F, Spies H S, Sándor P
Laboratory for Ecological Chemistry, University of Stellenbosch, South Africa.
Phytochemistry. 1998 Dec;49(7):2087-95. doi: 10.1016/s0031-9422(98)00413-0.
Two new triterpenoid saponins, beciumecine 1 and 2, were isolated from the root bark of Becium grandiflorum var. obovatum and their structures established as 3-O-(beta-D-glucopyranosyl) terminolic acid 28-O-beta-D-apiofuranosyl(1-3)-[alpha-L-rhamnopyranosyl (1-3)-beta-D-xylopyranosyl(1-4)]-alpha-L-rhamnopyranosyl (1-2)-alpha-L-arabinopyranoside and 3-O-(beta-D-glucopyranosyl) 24-hydroxyterminolic acid 28-O-alpha-L-rhamnopyranosyl(1-3)-beta-D-xylopyranosyl(1-4)-alpha-L- rhamnopyranosyl(1-2)-alpha-L-arabinopyranoside, respectively.
从倒卵形大花蜜蜂草的根皮中分离出两种新的三萜皂苷，即蜜蜂草素1和2，它们的结构分别确定为3 - O -（β - D - 吡喃葡萄糖基）终花酸28 - O - β - D - 阿糖呋喃糖基（1→3） - [α - L - 鼠李吡喃糖基（1→3） - β - D - 木吡喃糖基（1→4）] - α - L - 鼠李吡喃糖基（1→2） - α - L - 阿拉伯吡喃糖苷和3 - O -（β - D - 吡喃葡萄糖基）24 - 羟基终花酸28 - O - α - L - 鼠李吡喃糖基（1→3） - β - D - 木吡喃糖基（1→4） - α - L - 鼠李吡喃糖基（1→2） - α - L - 阿拉伯吡喃糖苷。
