title: [Chemical constituents of Cynanchum chinense R. Br].
abstract: OBJECTIVE
  To investigate the chemical constituents in the aerial part of Cynanchum chinense.
  
  
  METHODS
  The chemical constituents were extracted with solvent and separated by column chromatography. The structures were identified by spectral methods:
  
  
  RESULTS
  The structures were identified as 7-O-alpha-L-rhamnopy-ranosyl-kaempferol-3-O-alpha-L-rhamnopyranoside, 7-O-alpha-L-rhamnopy-ranosyl-kaempferol-3-O-beta-D-glucopyranoside and 7-O-alpha-L-rhamnopyr-anosylkaempferol-3-O-beta-D-glucopyranosyl(1-->2)- beta-D-glucopyranoside.
  
  
  CONCLUSIONS
  All the three compounds were separated from C. chinense for the first time.
authors.affiliation: Department of Pharmacy, Lanzhou Medical College, Lonzhou 730000.
authors.forename: C
authors.initials: C
authors.lastname: Li
authors.forename: Z
authors.initials: Z
authors.lastname: Gou
authors.forename: Y
authors.initials: Y
authors.lastname: Yang
authors.forename: C
authors.initials: C
authors.lastname: Zhang
mesh_terms: D031105:Cynanchum / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D044949:Kaempferols; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D005419:Flavonoids; D044949:Kaempferols; C006552:kaempferol