Isolation and purification of flavonoid glucosides from Radix Astragali by high-speed counter-current chromatography

文献类型： 外文期刊

第一作者： Xiao, Weihua

作者： Xiao, Weihua;Han, Lujia;Shi, Bo

作者机构：

关键词： High-speed counter-current chromatography;Radix Astragali;Isolationand purification;Calycosin-7-O-beta-D-glucoside-6 ''-O-acetate

期刊名称：JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES （ 影响因子：3.205； 五年影响因子：3.068 ）

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收录情况： SCI

摘要： High-speed counter-current chromatography methods, combined with resin chromatography were applied to the separation and purification of flavonoid glycosides from the Chinese medicinal herb, Radix Astragali. Five flavonoid glycosides, namely calycosin-7-O-beta-D-glucoside, ononin, (6aR, 11aR)-9,10-dimethoxypterocarpan-3-O-beta-D-glucoside, (3R)-2'-hyclroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucoside and calycosin-7-O-beta-D-glucoside-6 ''-O-acetate, were obtained. Among them, calycosin-7-O-beta-D-glucoside-6 ''-O-acetate was preparatively separated from Radix Astragali for the first time. Their structures were identified by ESI-MS, H-1 NMR, C-13 NMR, and 2D NMR.

分类号： Q503

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