期刊
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
卷 877, 期 8-9, 页码 697-702出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jchromb.2009.01.034
关键词
High-speed counter-current chromatography; Radix Astragali; Isolation and purification; Calycosin-7-O-beta-D-glucoside-6 ''-O-acetate
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. (C) 2009 Elsevier B.V. All rights reserved.
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