[关键词]
[摘要]
目的 研究太白楤木Aralia taibaiensis中的齐墩果酸型三萜皂苷类化学成分。方法 采用硅胶柱色谱、葡聚糖凝胶色谱、半制备液相色谱等色谱技术分离纯化,1D/2D-NMR、MS、IR等波谱技术解析结构。结果 从该植物中共分离得到了8个齐墩果酸型三萜皂苷,分别鉴定为太白楤木皂苷IX(1)、竹节参皂苷1(2)、竹节参皂苷IVa(3)、丝瓜苷H(4)、银莲花苷(5)、楤木皂苷A(6)、araliasaponin Ⅱ(7)和3-O-[β-D-吡喃葡萄糖基-(1→2)-α-L-阿拉伯糖基]齐墩果酸-28-O-β-D-吡喃葡萄糖基-(1→6)-β-D-吡喃葡萄糖酯苷(8)。结论 化合物1为新化合物,化合物4和8为首次从太白楤木中分离得到。
[Key word]
[Abstract]
Objective To study the triterpene saponins of Aralia taibaiensis. Methods The chemical components were separated and purified by Silica gel, Sephadex LH-20, and sp-HPLC; Their structures were elucidated by 1D/2D NMR, MS, and IR spectral data. Results Eight triterpene saponins were isolated and elucidated as taibaienoside IX (1), chikusetsusaponin 1 (2), chikusetsusaponin IVa (3), lucyoside H (4), narcissiflorine (5), araloside A (6), araliasaponin Ⅱ (7), and 3-O-[β-D-glucopyranosyl-(1→2)-α-L-arabinopyranosyl]-oleanolic acid-28-O-[β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl] ester (8). Conclusion Compound 1 is a new oleanolic type triterpene saponin which named as taibaienoside IX, while compounds 4 and 8 are isolated from this plant for the first time.
[中图分类号]
R284.1
[基金项目]
陕西省科技厅社会发展科技攻关项目(2015SF202)