title: [Study on chemical constituents of iridoids from eucommiae folium].
abstract: OBJECTIVE
  To investigate the chemical constituents of iridoids from Eucommiae Folium.
  
  
  METHODS
  The compounds were isolated and purified by various column chromatography, the structures were identified on the basis of physiochemical properties and spectral analysis.
  
  
  RESULTS
  Nine iridoids were isolated and identified as asperuloside (1), daphylloside (2), scandoside methyl ester (3), loganin (4), 8-epi-loganin (5), 7-epi-loganin (6), deacetyl asperulosidic acid methyl ester (7), geniposide (8) and geniposidic acid (9).
  
  
  CONCLUSIONS
  Compounds 2 - 7 are isolated from this plant for the first time, compounds 4 - 6 are isolated from this genus for the first time.
authors.forename: Yue-Ming
authors.initials: YM
authors.lastname: Zuo
authors.forename: Zhong-Li
authors.initials: ZL
authors.lastname: Zhang
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Wang
authors.forename: Lan-Ying
authors.initials: LY
authors.lastname: Chen
authors.forename: Rong-Hua
authors.initials: RH
authors.lastname: Liu
authors.forename: Yu-Yi
authors.initials: YY
authors.lastname: Li
mesh_terms: D002855:Chromatography, Thin Layer; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification; D031283:Eucommiaceae / Q000737:chemistry*; D039823:Iridoids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D003373:Coumaric Acids; C509054:E-6-O-p-coumaroyl scandoside methyl ester; D039823:Iridoids; C059516:loganin