Two new flavonol glycosides from Gymnema sylvestre and Euphorbia ebracteolata

Abstract Two new flavonol glycosides, namely kaempferol 3- O -β- d -glucopyranosyl-(1 → 4)-α- l -rhamnopyranosyl-(1 → 6)-β- d -galactopyranoside ( 1 ) and quercetin 3- O -6″-(3-hydroxyl-3-methylglutaryl)-β- 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.