title: Two new xanthones from Lomatogonium carinthiacum.
abstract: OBJECTIVE
  To study the chemical constituents of Lomatogonium carinthiacum (Wulfen) Rchb.
  
  
  METHODS
  The CHCl3-soluble fraction was separated by chromatography and the structures of the new compounds were elucidated by spectral experiments.
  
  
  RESULTS
  Two new xanthones, 1, 8-dihydroxy-4, 5-dimethoxy-6, 7-methylenedioxyxanthone (1), 1, 4, 8-trimethoxyxanthone-6-O-β-D-glucoronyl-(1→6)O-β-D-glucoside (2) were isolated from the whole plant of Lomatogonium carinthiacum.
  
  
  CONCLUSIONS
  Compounds 1 and 2 are new natural products.
authors.affiliation: College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao 028000, China.
authors.lastname: Ba-Gen-Na
authors.affiliation: College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao 028000, China.
authors.forename: Yu-Lan
authors.initials: YL
authors.lastname: Chen
authors.affiliation: College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao 028000, China.
authors.lastname: Baderihu
authors.affiliation: College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao 028000, China.
authors.forename: Yu-Feng
authors.initials: YF
authors.lastname: Tong
authors.affiliation: College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao 028000, China.
authors.lastname: Ye-Ri-Gui
authors.affiliation: College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao 028000, China. Electronic address: wqh693@163.com.
authors.forename: Qing-Hu
authors.initials: QH
authors.lastname: Wang
mesh_terms: D029965:Gentianaceae / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D044004:Xanthones / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C000598247:1,4,8-trimethoxyxanthone-6-O-beta-D-glucoronyl-(1-6)O-beta-D-glucoside; C000598246:1,8-dihydroxy-4,5-dimethoxy-6,7-methylenedioxyxanthone; D005960:Glucosides; D010936:Plant Extracts; D044004:Xanthones
keywords: 2D NMR; Lomatogonium carinthiacum; Xanthones