Structural determination of two triterpenoid saponins from Gymnocladus chinensis Baill  

肥皂荚Gymnocladus chinensis Baill.中两个三萜皂苷的结构鉴定(英文)

作　　者：王刊[1] 付宏征[1] 

机构地区：[1]北京大学天然药物及仿生药物国家重点实验室,北京100191

出　　处：《Journal of Chinese Pharmaceutical Sciences》2009年第2期141-145,共5页中国药学（英文版）

基　　金：National Natural Science Foundation of China (GrantNo. 30772639)

摘　　要：Two triterpenoid saponins （compound Ⅰ and Ⅱ） have been isolated from Gymnocladus chinensis Baill., and compound Ⅰ was determined as a new compound. The structure of compound Ⅰ was assigned as 2β,23-dihydroxy-acacic acid-3-O-α-L-arabinopyranosyl-21-O-{（6S）-2-E-2,6-dimethyl-6-O-[4-O-（6S）-2-E- 2,6 -dimethyl-6-O-β-D-glucopyranosyl-α-L-arabinopyranosyl-2,7-octadienoyl} -28-O-β-D-xylopyranosyl（ 1 →3 ）-β-D-xylopymnosyl （ 1→4）- α-L-rhamnopyranosyl（1→2）-[α-L-rhamnopyranosyl-（1→6）]-β-D-glucopyranoside by extensive MS and NMR studies.从肥皂荚Gymnocladus chinensis Baill.提取出两个三萜皂苷类化合物(化合物I与II),其中化合物I为新化合物,通过核磁方法,鉴定其为2β,23-dihydroxy-acacic acid-3-O-α-L-arabinopyranosyl-21-O-{(6S)-2-E-2,6-dimethyl-6-O-[4-O-(6S)-2-E-2,6-dimethyl-6-O-β-D-glucopyranosyl-α-L-arabinopyranosyl-2,7-octadienoyl}-28-O-β-D-xylopyranosyl(1→3)-β-D-xylopyranosyl(1→4)-α-L-rhamnopyranosyl(1→2)-[α-L-rhamnopyranosyl-(1→6)]-β-D-glucopyranoside。

关 键 词：1D/2D NMR Triterpenoid saponins Gymnocladus chinensis Baill. 

分 类 号：R284.1[医药卫生—中药学]