title: [Studies on chemical constituents in roots of Polygala tenuifolia].
abstract: OBJECTIVE
  To study the chemical constituents from the roots of Polygala tenuifolia.
  
  
  METHODS
  Column chromatographic techniques were employed for isolation and purification of chemical constituents of the plant and the structures were elucidated by spectroscopic analysis.
  
  
  RESULTS
  Five chemical constituents were isolated and elucidated as 4-C-beta-glucopyranosyl-1,3,6-trihydroxy-7-methoxyxanthone (1), 4-C-[beta-D-apiofuranosyl-(1-->6)-beta-D-glucopyranosyl]-1,3,6- trihydroxy-7-methoxyxanthone (2), presenegenin (3), presenegenin-3-O-beta-D-glycopyranoside (4) and daucosterol (5), respectively.
  
  
  CONCLUSIONS
  Compounds 1,3,4 and 5 were isolated from this plant for the first time. Compound 1 is a new natural product.
authors.affiliation: Department of Phytochemistry, China Pharmaceutical University, Nanjing 210009, Jiangsu, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Wang
authors.forename: Yu-Xin
authors.initials: YX
authors.lastname: Tong
authors.forename: Wen-Cai
authors.initials: WC
authors.lastname: Ye
authors.forename: Shou-Xun
authors.initials: SX
authors.lastname: Zhao
mesh_terms: D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D031801:Polygala / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification; D044004:Xanthones / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C487712:4-C-glycopyranosyl-1,3,6-trihydroxy-7-methoxyxanthone; D005960:Glucosides; D012855:Sitosterols; D014315:Triterpenes; D044004:Xanthones; C487713:presenegenin; C011015:lyoniside