title: [Study on the chemical constituents from the herb of Gentianopsis paludosa].
abstract: OBJECTIVE
  To study the chemical constituents from the herb of Gentianopsis paludosa.
  
  
  METHODS
  Column chromatogrophy and spectral analysis were used to isolate and identify the constituents.
  
  
  RESULTS
  Six compounds were isolated and identified as 1,7-dihydroxy-3,8-dimethoxyxanthone (I), 1-hydroxy-3, 7, 8-trimethoxyxanthone (II), 1, 8-dihydroxy-3, 7-dimethoxyxanthone (III), 1-hydroxy-3, 7-dimethoxyxanthone (IV), beta-sitosterol (V), daucosterol (VI).
  
  
  CONCLUSIONS
  Compounds III-VI were isolated from the plant for the first time.
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. duyg@dicpae.cn
authors.forename: Huan-di
authors.initials: HD
authors.lastname: Wang
authors.forename: Cheng-yu
authors.initials: CY
authors.lastname: Tan
authors.forename: Yu-guang
authors.initials: YG
authors.lastname: Du
authors.forename: Xue-fang
authors.initials: XF
authors.lastname: Bai
authors.forename: Hai-feng
authors.initials: HF
authors.lastname: Lu
mesh_terms: D029965:Gentianaceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*; D044004:Xanthones / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C500731:1,8-dihydroxy-3,7-dimethoxyxanthone; D012855:Sitosterols; D044004:Xanthones; C025473:gamma-sitosterol; C011015:lyoniside