[紫黄晶苷A的结构以及对紫塞韦苷XV和7,2'-二羟基-3',4'-二甲氧基异黄酮-7-O-β-D-糖苷的二维核磁共振研究]
[The structure of astrachrysosid A and the study of 2D-NMR on astrasieversianin XV and 7,2'-dihydroxy-3',4'-dimethoxy-isoflavane-7-O-beta-D-glycoside].
作者信息
Wang H K, He K, Xu H X, Zhang Z L, Wang Y F, Kikuchi T, Tezuka Y
机构信息
Shanghai College of Traditional Chinese Medicine.
出版信息
Yao Xue Xue Bao. 1990;25(6):445-50.
Six compounds were isolated from the root of Astragalus chrysopterus Bunge. One of them was identified as a new triterpenoid glycoside, named astrachrysoside A. Its structure was elucidated as 3-O-[alpha-L-rhamnopyranosyl (1----2) beta-D-xylopyranosyl]-cycloastragenol on the basis of physicochemical evidence and chemical reactions. The others were shown to be known compounds, astrasieversianin XV (II), 7,2'-dihydroxy-3',4'-dimethoxy-isoflavane-7-O-beta-D-glucoside (III), soyasaponin I, daucosterol and beta-sitosterol. Full assignment of the chemical shift signals of II and III were established by various 2D-NMR techniques.
从金翼黄芪根中分离出6种化合物。其中一种被鉴定为新的三萜糖苷，命名为黄华黄芪苷A。根据理化证据和化学反应，其结构被阐明为3 - O - [α - L - 鼠李吡喃糖基(1→2)β - D - 木吡喃糖基] - 环黄芪醇。其他化合物被证明是已知化合物，即紫花黄芪苷XV（II）、7,2'-二羟基 - 3',4'-二甲氧基异黄酮 - 7 - O - β - D - 葡萄糖苷（III）、大豆皂苷I、胡萝卜苷和β - 谷甾醇。通过各种二维核磁共振技术对II和III的化学位移信号进行了全归属。
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