[Xanthone glycosides from Tibetan herb Halenia elliptica].
OBJECTIVE
To isolate and identify the active xanthone glycosides in Halenia elliptica.


METHODS
The compounds were isolated by column chromatography, semi-preparative high performance liquid chromatography and related techniques. Their structures were elucidated through spectroscopic analysis (NMR and MS).


RESULTS
Six xanthone glycosides were isolated and identified as: 2,3,5-trimethoxy-1-O-primeverosyloxyxanthone (1), 2, 3, 4, 5-tetramethoxy-1-O-primeverosyloxyxanthone (2), 2, 3, 5, 7-tetramethoxy-1-O-primeverosyloxyxanthone (3), 2, 3, 7-trimethoxy-1-O-primeverosyloxyxanthone (4), 2, 3, 4, 7-tetramethoxy-1-O-primeverosyloxyxanthone (5), and 2, 3, 4, 5, 7-pentamethoxy-1-O-primeverosyloxyxanthone (6).


CONCLUSIONS
Compounds 4-6 were isolated from this plant for the first time.
Liu
Xia
X
Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
Liu
Yong
Y
Shi
Yanping
Y
D004365:Drugs, Chinese Herbal / Q000737:chemistry; D029965:Gentianaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D044004:Xanthones / Q000737:chemistry*
D004365:Drugs, Chinese Herbal; D006027:Glycosides; D044004:Xanthones; C009689:xanthone