title: [Study on chemical constituents of Eucommia ulmoides leaves].
abstract: OBJECTIVE
  To investigate the chemical constituents of Eucommia ulmoides leaves.
  
  
  METHODS
  Various column chromatography were used in the isolation and purification, physiochemical constant determination and spectral analysis were adopted to determine the chemical structures.
  
  
  RESULTS
  Ten compounds were isolated and identified as borreriagenin (1), n-butyl-O-β-D-fructopyranoside (2), α-D-glucopyranosyl-(1-->1')-3'-amino-3'-deoxy-β-D-glucopyranoside (3), β-D-fructofuranosyl-α-D-galactopyranoside (4), β-D-fructose (5), diisobutyl phthalate (6), 5-hydroxy-9-isopropylether-guaiacylglycerol (7), 4-hydroxyphenylethanol-8-O-β-D-apiofuranosyl(1-->6)-β-D-glucopyranoside (8), lariciresinol (9), and (3S,5R,6R,9S)-tetrahydroxy-7-ene-megastigmane (10).
  
  
  CONCLUSIONS
  All compounds are isolated from this genus for the first time.
authors.forename: Yue-ming
authors.initials: YM
authors.lastname: Zuo
authors.forename: Miao-ting
authors.initials: MT
authors.lastname: Cai
authors.forename: Zhong-li
authors.initials: ZL
authors.lastname: Zhang
authors.forename: Rong-hua
authors.initials: RH
authors.lastname: Liu
authors.forename: Lan-ying
authors.initials: LY
authors.lastname: Chen
mesh_terms: D003512:Cyclohexanones / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D031283:Eucommiaceae / Q000737:chemistry*; D005960:Glucosides / Q000302:isolation & purification; D039821:Monoterpenes / Q000302:isolation & purification; D045792:Norisoprenoids / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*
chemical_list: D003512:Cyclohexanones; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D039821:Monoterpenes; D045792:Norisoprenoids; C517074:borreriagenin; C413264:megastigmane