Two new flavonol glycosides from Gymnema sylvestre and Euphorbia ebracteolata.
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.
Department of Natural Product Chemistry, China Pharmaceutical University, Nanjing 210009, China.
Xin
X
Liu
Wencai
W
Ye
Biao
B
Yu
Shouxun
S
Zhao
Houming
H
Wu
Chuntao
C
Che
D028481:Euphorbia / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D031104:Gymnema sylvestre / Q000737:chemistry*; D044949:Kaempferols / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D009844:Oligosaccharides / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000302:isolation & purification
D005960:Glucosides; D044949:Kaempferols; D009844:Oligosaccharides; C492897:kaempferol 3-O-glucopyranosyl-1-4-rhamnopyranosyl-1-6-galactopyranoside; C492898:quercetin 3-O-6''-(3-hydroxy-3-methylglutaryl)glucopyranoside; C006552:kaempferol; D011794:Quercetin