化学学报 ›› 1983, Vol. 41 ›› Issue (12): 1137-1145. 上一篇    下一篇

研究论文

膜荚黄芪苷元的结构

曹正中;俞家华;甘立宪;周维善   

  1. 南京药物研究所;中国科学院上海有机化学研究所
  • 发布日期:1983-12-15

The structure of astramembrangenin

CAO ZHENGZHONG;YU JIAHUA;GAN LIXIAN;ZHOU WEISHAN   

  • Published:1983-12-15

关键词: 仪器分析, 化学成分, 黄芪, 膜荚黄芪

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.

Key words: INSTRUMENTAL ANALYSIS, CHEMICAL COMPOSITION, ASTRAGALUS, ASTRAGALUS MEMBRANACEUS BUNGE

中图分类号: