Anthrone C-glucosides from Rheum emodi |
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Authors: | Krenn Liselotte Pradhan Riddhi Presser Armin Reznicek Gottfried Kopp Brigitte |
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Institution: | Institute of Pharmacognosy, University of Vienna, Austira. liselotte.krenn@univie.ac.at |
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Abstract: | In a study of the anthraderivatives in roots of Rheum emodi, three new anthrone C-glucosides, named 10-hydroxycascaroside C (1), 10-hydroxycascaroside D (2) and 10R-chrysaloin 1-O-beta-D-glucopyranoside (3) were isolated besides the rare compounds cascaroside C (4), cascaroside D (5) and cassialoin (6). Additionally the investigation resulted in the isolation of an acetylated chrysophanol glucoside, 8-O-beta-D-(6'-O-acetyl)glucopyranosyl-chrysophanol (7). The structures were established by comprehensive spectroscopic investigations. |
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