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化学学报
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化学学报 ›› 1989, Vol. 47 ›› Issue (6): 583-587. 上一篇    下一篇

研究论文

黄芪属植物化学研究 II: 梭果萤芪花A和B的结构鉴定

王惠康;何侃;凌罗庆;李宏善   

  1. 上海中医学院
  • 发布日期:1989-06-15

Chemical study of astragalus plant II: The structures of asernestioside A and B, isolated from Astragalus Ernestii Comb

WANG HUIKANG;HE KAN;LING LUOQING;LI HONGSHAN   

  • Published:1989-06-15

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412

本文从梭黄芪的干燥根中分得胡罗卜芪, β-谷甾醇和两个新黄芪皂芪A和B, 经光谱和化学方法确证, 芪A为3-O-[α-L-鼠李吡喃糖基(1→2)-β-D-木吡喃糖基]-25-O-β-D-葡萄吡喃糖基环黄芪醇花B为3-O-[α-L-鼠李吡喃糖基(1→2)-(3'-O-乙酰基)-β-D-木吡喃糖基]-25-O-β-D-葡萄吡喃糖基环黄芪醇。

关键词: 黄芪, 皂角苷, 萜类化合物, 核磁共振谱法, 吡喃糖, 葡萄糖, 糖苷, 三萜, 鼠李糖, 木糖

Four compounds have been isolated from the roots of A. ernestii Comb. Two of them were identified as new triterpenoidal glycosides, named asernestioside A (I) and B (II). Their structures were elucidated as 3-O-[a-L-rhamnopyranosyl (1?)-b-D-xylopyranosyl]-25-O-b-D-glucopyranosyl cycloastragenol and 3-O-[a-L-rhamnopyranosyl (1?)-(3'-O-acetyl)-b-D-xylopyranosyl]-25-O-b-D-glucopyranosyl cycloastragenol, resp., on the bases of physicochem. evidence and chem. reactions. The other compounds were daucosterol and b-sitosterol.

Key words: ASTRAGALUS, SAPONINS, TERPENE, NMR SPECTROMETRY, PYRANOSE, GLUCOSE, GLYCOSIDE, TRITERPENE, RHAMNOSE, XYLOSE

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