title: [Studies on the chemical constituents from the branches and leaves of Cupressus duolouxiana].
abstract: OBJECTIVE
  To investigate the chemical constituents from the branches and leaves of Cupressus duolouxiana native to China in order to obtain a more comprehensive understanding of its effective components.
  
  
  METHODS
  Compounds were isolated and purified by silica gel column chromatography. They were identified and structurally elucidated by spectral analysis.
  
  
  RESULTS
  Six compounds were isolated from the ethanolic extracts of Cupressus duolouxiana, which were identified as (7S,8S)-3-methoxy-3',7-epoxy-8,4'-oxy-neoligna-4,9,9'-triol (I), kaempferol (II), quercetin (III), juglanin (IV), quercetin-3'-methoxy-3-O-alpha-L-arabinofuranoside (V) and avicularin (VI).
  
  
  CONCLUSIONS
  All compounds are obtained from this plant for the first time.
authors.affiliation: College of Food Science, Shanghai Fisheries University, Shanghai 210093, China. jfxu@shfu.edu.cn
authors.forename: Jian-Feng
authors.initials: JF
authors.lastname: Xu
authors.forename: Ning-Hua
authors.initials: NH
authors.lastname: Tan
mesh_terms: D002681:China; D029781:Cupressus / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D044949:Kaempferols / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D018515:Plant Leaves / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D005419:Flavonoids; D044949:Kaempferols; C041388:avicularin; D011794:Quercetin