[来自厚叶石莲的皂苷]
[Saponins from Thinouia coriacea].
作者信息
Schenkel E P, Werner W, Schulte K E
机构信息
Faculdade de Farmàcia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
出版信息
Planta Med. 1991 Oct;57(5):463-7. doi: 10.1055/s-2006-960152.
The investigation of the stems of Thinouia coriacea Britton (Sapindaceae), an ichthyotoxic plant from South Brazil, afforded eight glycosides of oleanolic acid. Structures were assigned based on data from partial hydrolysis. 13C-NMR and mass spectral procedures as 3-O-alpha-L-arabinopyranoside (1), 3-O-alpha-L-rhamnopyranosyl-(1----2)-alpha-L-arabinopyranoside+ ++ (2), 3-O-beta-D-glucopyranosyl-(1----4)-alpha-L-arabinopyranoside (3), 3-O-beta-D-glucopyranosyl-(1----3)-alpha-L-rhamnopyranosyl-(1----2 )-alpha-L-arabinopyranoside (4), 3-O-alpha-L-rhamnopyranosyl-(1----2)[beta-D-glucopyranosyl-(1----4 )]-alpha-L-arabinopyranoside (5), 3-O-beta-D-xylopyranosyl-(1----3)-alpha-L-rhamnopyranosyl-(1----2) [beta-D-glucopyranosyl-(1----4)[alpha-L-arabinopyranoside (6), 3-O-beta-D-glucopyranosyl-(1----3)-alpha-L-rhamnopyranosyl-(1----2 )[beta-D-glucopyranosyl-(1----4)]-alpha-L-arabinopyranoside (8). Saponin 7 showed the same sugars as 8, but the attachment between the sugars could not be elucidated. The same saponins were present in the roots, but not in the leaves.
对来自巴西南部的具有鱼毒性的植物薄叶赛平（无患子科）茎部的研究，得到了8种齐墩果酸糖苷。根据部分水解、13C - NMR和质谱分析数据确定了其结构，分别为3 - O - α - L - 阿拉伯吡喃糖苷（1）、3 - O - α - L - 鼠李吡喃糖基 -（1→2）- α - L - 阿拉伯吡喃糖苷（2）、3 - O - β - D - 葡萄糖吡喃糖基 -（1→4）- α - L - 阿拉伯吡喃糖苷（3）、3 - O - β - D - 葡萄糖吡喃糖基 -（1→3）- α - L - 鼠李吡喃糖基 -（1→2）- α - L - 阿拉伯吡喃糖苷（4）、3 - O - α - L - 鼠李吡喃糖基 -（1→2）[β - D - 葡萄糖吡喃糖基 -（1→4）]- α - L - 阿拉伯吡喃糖苷（5）、3 - O - β - D - 木糖吡喃糖基 -（1→3）- α - L - 鼠李吡喃糖基 -（1→2）[β - D - 葡萄糖吡喃糖基 -（1→4）] - α - L - 阿拉伯吡喃糖苷（6）、3 - O - β - D - 葡萄糖吡喃糖基 -（1→3）- α - L - 鼠李吡喃糖基 -（1→2）[β - D - 葡萄糖吡喃糖基 -（1→4）] - α - L - 阿拉伯吡喃糖苷（8）。皂苷7与8具有相同的糖，但糖之间的连接方式无法确定。根部含有相同的皂苷，而叶子中则没有。
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