Triterpene Glycosides of Astragalus and Their Genins. LXVII. Structure of Cycloexoside B

被引：0
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作者：
R. P. Mamedova
M. A. Agzamova
M. I. Isaev
机构：
[1] Academy of Sciences of the Republic of Uzbekistan,S. Yu. Yunusov Institute of the Chemistry of Plant Substances
来源：
Chemistry of Natural Compounds | 2002年 / 38卷
关键词：
triterpenoids; cycloartanes; cyclosiversigenin; cycloexoside B; cyclosiversiosides; Astragalus; Leguminosae; PMR; NMR; DEPT; J-modulation;
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摘要：
Another seven components from the roots of Astragalus exilis A.Kor. (Leguminosae) were identified using spectral data and chemical transformations. A triterpenoid of genin nature was identical to cyclosiversigenin. One compound of glycosidic nature turned out to be a new cycloartane glycoside called by us cycloexoside B of structure 20R,24S-epoxycycloartan-3β,6α,16β,25-tetraol 3-O-β-D-(2-Oacetyl) xylopyranoside. Five glycosides were identified as cyclosiversigenin 3-O-β-D-xylopyranoside and cyclosiversiosides B, C, D, and G.
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页码：579 / 582
页数：3
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