title: [Studies on chemical constituents from Eucommia ulmoides Oliv].
abstract: OBJECTIVE
  To study the chemical constituents from Eucommia ulmoides Oliv.
  
  
  METHODS
  The chemical constituents were isolated and repeatedly purified on silica gel column. They were identified and structurally elucidated by means of physio-chemical constants and spectral analysis.
  
  
  RESULTS
  Seven compounds were obtained. They were (-)epicatechin (I), catechin (II), n-octacosanoic acid (III), tetracosanoic-2, 3-dihydroxypropylester (IV), rutin (V), chlorogenic acid (VI), and caffeic acid (VII), respectively.
  
  
  CONCLUSIONS
  Four compounds (II, III, IV, V) were isolated from bark of Eucommia ulmoides Oliv for the first time.
authors.affiliation: Institute of Pharmaceutical Sciences, The First Military Medical University, Guangzhou 510515.
authors.forename: Yanrong
authors.initials: Y
authors.lastname: Sun
authors.forename: Junxing
authors.initials: J
authors.lastname: Dong
authors.forename: Shuguang
authors.initials: S
authors.lastname: Wu
mesh_terms: D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification; D002392:Catechin / Q000737:chemistry / Q000302:isolation & purification*; D002726:Chlorogenic Acid / Q000737:chemistry / Q000302:isolation & purification; D002855:Chromatography, Thin Layer / Q000379:methods; D031283:Eucommiaceae / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012431:Rutin / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D002109:Caffeic Acids; D002726:Chlorogenic Acid; D012431:Rutin; D002392:Catechin; C040048:caffeic acid