title: [Studies on the phenylpropanoids from Eucommia ulmoides].
abstract: OBJECTIVE
  To study the chemical constituents from the leaves of Eucommia ulmoides.
  
  
  METHODS
  The constituents were isolated by chromatography method and the structures were identified on the basis of spectral analysis.
  
  
  RESULTS
  Six compounds, ursolic acid(1), beta-sitosterol(2), p-coumaric(3), caffeic acid ethyl ester(4), chlorogenic acid(5) and syringin(6) were obtained.
  
  
  CONCLUSIONS
  Compound 3, 4, 5 were obtained from the plant for the first time.
authors.affiliation: Department of Natural Medicines School of Pharmaceutical Sciences, Peking University, Beijing 100083, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Cheng
authors.forename: Yan-jing
authors.initials: YJ
authors.lastname: Bai
authors.forename: Yu-ying
authors.initials: YY
authors.lastname: Zhao
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.forename: Tie-ming
authors.initials: TM
authors.lastname: Cheng
mesh_terms: D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D002726:Chlorogenic Acid / Q000737:chemistry / Q000302:isolation & purification*; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification*; D031283:Eucommiaceae / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011422:Propionates
chemical_list: D002109:Caffeic Acids; D003373:Coumaric Acids; D011422:Propionates; D002726:Chlorogenic Acid; C032773:ethyl caffeate; C495469:p-coumaric acid