Two new flavonol glycosides from Gymnema sylvestre and Euphorbia ebracteolata

Xin Liu; Wencai Ye; Biao Yu; Shouxun Zhao; Houming Wu; Chuntao Che

doi:10.1016/j.carres.2003.12.017

Two new flavonol glycosides from Gymnema sylvestre and Euphorbia ebracteolata

Carbohydr Res. 2004 Mar 15;339(4):891-5. doi: 10.1016/j.carres.2003.12.017.

Authors

Xin Liu¹, Wencai Ye, Biao Yu, Shouxun Zhao, Houming Wu, Chuntao Che

Affiliation

¹ Department of Natural Product Chemistry, China Pharmaceutical University, Nanjing 210009, China.

PMID: 14980834
DOI: 10.1016/j.carres.2003.12.017

Abstract

Two new flavonol glycosides, namely kaempferol 3-O-beta-D-glucopyranosyl-(1-->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.

MeSH terms

Euphorbia / chemistry*
Glucosides / chemistry*
Glucosides / isolation & purification
Gymnema sylvestre / chemistry*
Kaempferols / chemistry*
Kaempferols / isolation & purification
Magnetic Resonance Spectroscopy
Oligosaccharides / chemistry*
Oligosaccharides / isolation & purification
Plant Leaves / chemistry
Quercetin / analogs & derivatives*
Quercetin / chemistry*
Quercetin / isolation & purification

Substances

Glucosides
Kaempferols
Oligosaccharides
kaempferol 3-O-glucopyranosyl-1-4-rhamnopyranosyl-1-6-galactopyranoside
quercetin 3-O-6''-(3-hydroxy-3-methylglutaryl)glucopyranoside
kaempferol
Quercetin