| 膜荚黄芪苷元的结构 |
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| 引用本文： | 曹正中,俞家华,甘立宪,周维善.膜荚黄芪苷元的结构[J].化学学报,1983,41(12):1137-1145. |
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| 作者姓名： | 曹正中 俞家华 甘立宪 周维善 |
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| 作者单位： | 南京药物研究所;中国科学院上海有机化学研究所 |
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| 摘 要： | 从膜荚黄芪的根中分得膜荚黄芪皂苷甲,皂苷乙和皂苷丙.膜荚黄芪皂苷甲是主要成分.药理试验有降压和抗炎作用、皂苷甲经Smith氧化降解得到膜荚黄芪苷元1.用IR,~1HNMR,~(13)C NMR,MS和化学降解证明其结构为1.根据镧系位移试剂的~1H NMR,1的C_(20)和C_(24)的构型分别确定为S和R.
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| 关 键 词： | 仪器分析 化学成分 黄芪 膜荚黄芪 |
The structure of astramembrangenin |
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| CAO ZHENGZHONG,YU JIAHUA,GAN LIXIAN,ZHOU WEISHAN.The structure of astramembrangenin[J].Acta Chimica Sinica,1983,41(12):1137-1145. |
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| Authors: | CAO ZHENGZHONG YU JIAHUA GAN LIXIAN ZHOU WEISHAN |
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| Abstract: | Three Astragalus saponins I, II, III have been isolated from roots of A. membranaceus Bunge (Leguminosae). Astragalus saponin I is the major constitutent. The structure of astramembangenin C30H50O5 obtained from saponin I by Smith's oxidative degradation with NaIO4 followed by NaBH4 reduction, was assigned as 1 by means of spectroscopic analysis (IR, ^1H NMR, ^1^3C NMR and MSe as well as chemical degradation. The configuration of C20 and C24 of 1 was established as S and R respectively by means of^1H NMR spectroscopy using lanthanide shift reagent. |
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| Keywords: | INSTRUMENTAL ANALYSIS CHEMICAL COMPOSITION ASTRAGALUS ASTRAGALUS MEMBRANACEUS BUNGE |
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