title: [Studies on chemical constituents of Helwingia chinensis].
abstract: OBJECTIVE
  To investigate the chemical constituents of Helwingia Chinensis.
  
  
  METHODS
  Compounds were isolated with silica gel, Sephadex LH - 20 and polyamide chromatography, and their structures were elucidated by means of spectral analysis.
  
  
  RESULTS
  Six compounds were isolated and identified as cinnamic acid (1), gult-5-en-3beta-ol (2), friedelin (3), alpha-amyrin (4), luteolin-7-O-beta-D-glucoside (5) and 4, 5-dimethoxy-1, 2-benzoquinone (6).
  
  
  CONCLUSIONS
  All these Compounds were obtained from H. chinensis for the first time.
authors.affiliation: Key Laboratory of Chemistry for Natural Products of Guizhou Province, Guiyang 550002, China. yangxz2002@126.com
authors.forename: Juan
authors.initials: J
authors.lastname: Yang
authors.forename: Fang-ming
authors.initials: FM
authors.lastname: Lou
authors.forename: Yu-kun
authors.initials: YK
authors.lastname: Niu
mesh_terms: D002934:Cinnamates / Q000737:chemistry / Q000302:isolation & purification*; D029767:Cornaceae / Q000737:chemistry*; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D000094042:Lupanes
chemical_list: D002934:Cinnamates; D009828:Oleanolic Acid; D014315:Triterpenes; C029010:cinnamic acid; C060796:friedelin; D000094042:Lupanes; C036380:beta-amyrin