title: [Phenylpropanoids constituents of Eucommia ulmoides leaves].
abstract: OBJECTIVE
  To investigate phenylpropanoids constituents from Eucommia ulmoides leaves.
  
  
  METHODS
  Various column chromatographic methods were used in isolation and purification. Physiochemical constant determination and spectral analysis were adopted to determine the chemical structures of phenylpropanoids.
  
  
  RESULTS
  Nine phenylpropanoids were isolated and identified as caffeic acid (1), chlorogenic acid methylester (2), syringin (3), guaiacylglycerol (4), 5-methoxy-guaiacylglycerol (5), 5,9-dimethoxy-guaiacylglycerol (6), 9-n-butyl-guaiacylglycerol (7), 9-n-butyl-isoguaiacylglycerol (8), 8'-methoxy-olivil (9).
  
  
  CONCLUSIONS
  Compounds 5 - 9 are isolated from this plant for the first time.
authors.forename: Zhong-Li
authors.initials: ZL
authors.lastname: Zhang
authors.forename: Yue-Ming
authors.initials: YM
authors.lastname: Zuo
authors.forename: Yu-Yi
authors.initials: YY
authors.lastname: Li
authors.forename: Lan-Ying
authors.initials: LY
authors.lastname: Chen
authors.forename: Rong-Hua
authors.initials: RH
authors.lastname: Liu
mesh_terms: D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D031283:Eucommiaceae / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D005990:Glycerol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D002109:Caffeic Acids; D004365:Drugs, Chinese Herbal; D005960:Glucosides; C525334:guaiacylglycerol 3-O-(6-O-p-coumaroyl)glucopyranoside; D005990:Glycerol