苦丁茶中的三萜类糖苷。

Triterpenoid glycosides from Ilex kudincha.

作者信息

Ouyang M A, Wang H Q, Chen Z L, Yang C R

机构信息

Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Gansu, China.

出版信息

Phytochemistry. 1996 Sep;43(2):443-5. doi: 10.1016/0031-9422(96)00015-5.

DOI:10.1016/0031-9422(96)00015-5

PMID:8862036

Abstract

Three new saponins, named kudinosides A, B and C, were isolated from the leaves of Ilex kudincha. On the basis of spectroscopic analysis and chemical transformation their structures were elucidated as 3-O-beta-D-glucopyranosyl-(1-->3)-[alpha-L-rhamnopyranosyl- (1-->2)]-alpha-L-arabinopyranosyl-beta-kudinlactone, 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->3)-alpha-L- arabinopyranosyl-beta-kudinlactone and 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->3)-[alpha-L -rhamnopyranosyl-(1-->2)]-alpha-L-arabinopyranosyl-beta-kudinla c tone.

摘要

从苦丁茶冬青叶中分离出三种新的皂苷，命名为苦丁皂苷A、B和C。基于光谱分析和化学转化，确定它们的结构分别为3-O-β-D-吡喃葡萄糖基-(1→3)-[α-L-吡喃鼠李糖基-(1→2)]-α-L-吡喃阿拉伯糖基-β-苦丁内酯、3-O-β-D-吡喃葡萄糖基-(1→2)-β-D-吡喃葡萄糖基-(1→3)-α-L-吡喃阿拉伯糖基-β-苦丁内酯以及3-O-β-D-吡喃葡萄糖基-(1→2)-β-D-吡喃葡萄糖基-(1→3)-[α-L-吡喃鼠李糖基-(1→2)]-α-L-吡喃阿拉伯糖基-β-苦丁内酯。