Xanthone C-glycoside and acylated sugar from Polygala tenuifolia.
A new xanthone C-glycoside, polygalaxanthone III (1), and a new acylated sugar, tenuifoliside E (2) were isolated from the roots of Polygala tenuifolia. Their structures were characterized as 4-C-[beta-D-apiofuranosyl-(1-->6)-beta-D-glucopyranosyl]-1, 3,6-trihydroxy-7-methoxyxanthone (1) and beta-D-(1-O-acetyl-3-O-feruloyl-6-O-sinapoyl)-fructofuranosy l-alpha-D-(2,4,6- O-triacetyl)glucopyranoside (2), respectively, on the basis of chemical and spectral evidence including two dimensional nuclear magnetic resonance (2D-NMR) studies.
Ikeya
Y
Y
Tsumura Central Research Laboratories, Ibaraki, Japan.
Sugama
K
K
Maruno
M
M
D004187:Disaccharides / Q000302:isolation & purification*; D006027:Glycosides / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010936:Plant Extracts / Q000032:analysis*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014966:Xanthenes / Q000302:isolation & purification*; D044004:Xanthones
D004187:Disaccharides; D006027:Glycosides; D010936:Plant Extracts; D014966:Xanthenes; D044004:Xanthones; C092101:polygalaxanthone III; C092100:tenuifoliside E