title: [Xanthone glycosides from Tibetan herb Halenia elliptica].
abstract: 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.
authors.affiliation: Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Liu
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.forename: Yanping
authors.initials: Y
authors.lastname: Shi
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry; D029965:Gentianaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D044004:Xanthones / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D044004:Xanthones; C009689:xanthone