Cyclocephaloside I:: A novel cycloartane-type glycoside from Astragalus microcephalus

被引:45
作者
Bedir, E
Calis, I [1 ]
Zerbe, O
Sticher, O
机构
[1] Hacettepe Univ, Fac Pharm, Dept Pharmacognosy, TR-06100 Ankara, Turkey
[2] ETH Zurich, Dept Pharm, CH-8057 Zurich, Switzerland
来源
JOURNAL OF NATURAL PRODUCTS | 1998年 / 61卷 / 04期
关键词
D O I
10.1021/np9704011
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
A novel cycloartane-type glycoside, cyclocephaloside I (1) was isolated from the roots of Astragalus microcephalus in addition to known glycosides cyclocanthoside E (2) and astragaloside IV (3). The structure of 1 was determined by spectral (IR, H-1 and C-13 NMR, and FABMS) and chemical (acetylation) methods and established as 20,25-epoxy-3 beta-(beta-D-xylopyranosyl)oxy-6 alpha-(beta-D-glucopyranosyl)oxy-cycloartane-16 beta,24 alpha-diol.
引用
收藏
页码:503 / 505
页数:3
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