title: [Chemical constituents from roots of Platycodon grandiflorum].
abstract: OBJECTIVE
  To study the chemical constituents from roots of Platycodon grandiflorum.
  
  
  METHODS
  Column chromatography (silica gel, macroporous resin, sephadex LH - 20 and the preparative RP - HPLC were used to isolate the constituents. Their structures were elucidated by physical and spectral data.
  
  
  RESULTS
  Eight compounds were isolated and identified as tangeritin (1), 3-O-beta-D-glucopyranosylplatycodigenin methyl ester (2), 3-O-beta-D-glucopyranosylplaticogenic acid A lactone (3), 3-O-beta-D-glucopyranosylplatycodigenin (4), deapio-platyconic acid A lactone (5), deapio-platycodin-D (6), platycoside-G1 (7) and platycoside-E (8).
  
  
  CONCLUSIONS
  Compounds 1,3 and 5 were isolated from this plant for the first time.
authors.affiliation: Department of Chinese Medicine Science and Engineering, Zhejiang University, Hangzhou 310028, China.
authors.forename: Ling-Jun
authors.initials: LJ
authors.lastname: Li
authors.forename: Zhen-Hua
authors.initials: ZH
authors.lastname: Liu
authors.forename: Yun
authors.initials: Y
authors.lastname: Chen
authors.forename: Jing-Kui
authors.initials: JK
authors.lastname: Tian
mesh_terms: D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D031238:Platycodon / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification
chemical_list: C523493:3-O-beta-D-glucopyranosylplaticogenic acid A lactone; D047309:Flavones; D007783:Lactones; D010936:Plant Extracts; D012503:Saponins; C121315:platycoside E; D009828:Oleanolic Acid; C059006:tangeretin