4.5 Article

Two new flavonol glycosides from Gymnema sylvestre and Euphorbia ebracteolata

Journal

CARBOHYDRATE RESEARCH
Volume 339, Issue 4, Pages 891-895

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2003.12.017

Keywords

flavonol glycoside; kaempferol 3-O-beta-D-glucopyranosyl-(1 -> 4)-alpha-L-rhamnopyranosyl-(1 -> 6)-beta-D-galactopyranoside; quercetin 3-O-6 ''-(3-hydroxyl-3-methylglutaryl)-beta-D-glucopyranoside; Gymnema sylvestre; Euphorbia ebracteolata

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Two new flavonol glycosides, namely kaempferol 3-O-beta-D-glucopyranosyl-(l --> 4)-alpha-L-rhamnopyranosyl-(1 --> 6)-beta-D-galactopyranoside (1) and quercetin 3-O-6-(3-hydroxyl-3-methylglutaryl)-beta-D-glucopyranoside (2), have been isolated from the aerial parts of Gymnema sylvestre and Euphorbia ebracteolata, respectively. Their structures were determined on the basis of chemical and spectroscopic methods. (C) 2004 Elsevier Ltd. All rights reserved.

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