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pratensein/astragalus
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3 results
Solvent effect in 1H NMR spectra of 3'-hydroxy-4'-methoxy isoflavonoids from Astragalus membranaceus var. mongholicus.
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Four 3'-hydroxy-4'-methoxy-isoflavonoids: calycosin-7-O-beta-D-glucopyranoside (1), calycosin (2), pratensein-7-O-beta-D-glucopyranoside (3), and pratensein (4) were isolated from Astragalus membranaceus var. mongholicus, among which compound 4 was obtained from this plant for the first time. The
[Isoflavonoids from roots of Astragalus membranaceus var. mongholicus].
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OBJECTIVE
To study the isoflavonoid constituents of the roots of Astragalus membranaceus var. mongholicus.
METHODS
Such column chromatography methods as HPD-100 macroporous adsorption resin, silica gel, polyamide and Sephadex LH-20 gel were used for seperating and purifying isoflavonoids, and their
[Chemical constituents and activities of total flavonoids from Yushen Tang].
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OBJECTIVE
To study the chemical constituents and activity of total flavonoids contained in Yushen Tang,in order to lay a foundation for defining active consituents of the prescription and their mechanism.
METHODS
The activity of total flavonoids contained in Yushen Tang were evaluated by in vitro
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