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.
Liu
Xin
X
Department of Natural Product Chemistry, China Pharmaceutical University, Nanjing 210009, China.
Ye
Wencai
W
Yu
Biao
B
Zhao
Shouxun
S
Wu
Houming
H
Che
Chuntao
C
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