唐古特铁线莲中的三萜皂苷。

Triterpenoid saponins from Clematis tangutica.

作者信息

Zhong H M, Chen C X, Tian X, Chui Y X, Chen Y Z

出版信息

Planta Med. 2001 Jul;67(5):484-8. doi: 10.1055/s-2001-15803.

DOI:10.1055/s-2001-15803

Abstract

Two new triterpenoid saponins, tanguticoside A and B along with seven known saponins vitalboside B, alpha-hederin, saponin PK, beta-hederin, saponin PJ3, saponin PE, and ciwujianoside A were isolated from aerial part of Clematis tangutica. By chemical and spectral evidences methods, the structures of tanguticoside A and B were elucidated as 3-O-beta-D-glucopyranosylhederagenin 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside and 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosylhederagenin 28-O-alpha-D-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside, respectively.

摘要

从甘青铁线莲地上部分分离得到两个新的三萜皂苷，唐古特苷A和B，以及七个已知皂苷，即紫丁香苷B、α-常春藤皂苷、皂苷PK、β-常春藤皂苷、皂苷PJ3、皂苷PE和刺五加苷A。通过化学和光谱证据方法，确定唐古特苷A和B的结构分别为3-O-β-D-吡喃葡萄糖基羽扇豆醇28-O-α-L-吡喃鼠李糖基-(1→4)-β-D-吡喃葡萄糖基-(1→6)-β-D-吡喃葡萄糖苷和3-O-β-D-吡喃葡萄糖基-(1→2)-β-D-吡喃葡萄糖基羽扇豆醇28-O-α-D-吡喃鼠李糖基-(1→4)-β-D-吡喃葡萄糖基-(1→6)-β-D-吡喃葡萄糖苷。