title: [Chemical constituents of Eucommia ulmoides].
abstract: OBJECTIVE
  To study the chemical compositions of Eucommia ulmoides.
  
  
  METHODS
  The compounds were isolated and purified from Eucommia ulmoides by silica gel column chromatography, Sephadex LH-20, MPLC packed with MCI gel and semi-preparative HPLC. The structures of these compounds were established on the basis of spectral analyses (1H-NMR, 13C-NMR and MS).
  
  
  RESULTS
  Thirteen compounds were obtained,and their structures were identified as betulin (1), syringin (2), pervoside A (3), glucosyringic acid (4), vanillic acid-beta-glucoside (5), geniposide acid (6), aucubin (7), geniposide (8), pinoresinol-4,4'-di-O-beta-D-glucopyranoside (9), syringaresinol di-O-beta-D-glucopyranoside (10), medioresinol di-O-beta-D-glucopyranoside (11), sucrose (12), and ethyl beta-glucopyranoside (13) on the basis of physical characteristics and spectral data.
  
  
  CONCLUSIONS
  Compounds 3 - 5, 12 and 13 are isolated from this plant for the first itme.
authors.forename: Shuang-Yan
authors.initials: SY
authors.lastname: Wang
authors.forename: Lin-Fen
authors.initials: LF
authors.lastname: Ding
authors.forename: Xing-De
authors.initials: XD
authors.lastname: Wu
authors.forename: Hai-Yin
authors.initials: HY
authors.lastname: Wang
authors.forename: Qin-Shi
authors.initials: QS
authors.lastname: Zhao
authors.forename: Liu-Dong
authors.initials: LD
authors.lastname: Song
mesh_terms: D001565:Benzoates / Q000737:chemistry / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D031283:Eucommiaceae / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D001565:Benzoates; D003373:Coumaric Acids; D004365:Drugs, Chinese Herbal; D005960:Glucosides; C539155:pervoside A; C092651:glucosyringic acid