title: [Studies on chemical constituents in the root of Hedysarum polybotrys].
abstract: OBJECTIVE
  To study the chemical constituents in the root of Hedysarum polybotrys Hand.-Mazz..
  
  
  METHODS
  The constituents were isolated by Sephadex LH-20 and silica gel column chromatography, and their structures were identified on the basis of spectral analysis.
  
  
  RESULTS
  Five compounds, medicarpin (I), 3-hydroxy-9-methoxycoumestan (II), 3, 9-dihydroxycoumestan (III), beta-sitosterol (IV), beta-sitosterol-3-O-beta-D-glucoside (V) were obtained.
  
  
  CONCLUSIONS
  Compounds II, III, V were obtained from the plant for the first time.
authors.affiliation: School of Pharmaceutical Sciences, Xinjiang Medical University, Urumqi 830054, China.
authors.forename: Li-qian
authors.initials: LQ
authors.lastname: Hai
authors.forename: Hong
authors.initials: H
authors.lastname: Liang
authors.forename: Yu-ying
authors.initials: YY
authors.lastname: Zhao
authors.forename: Nian-sheng
authors.initials: NS
authors.lastname: Du
mesh_terms: D007887:Fabaceae / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D036343:Pterocarpans / Q000737:chemistry / Q000302:isolation & purification; D000094162:Phytoalexins
chemical_list: D010936:Plant Extracts; D036343:Pterocarpans; C047353:medicarpin; D000094162:Phytoalexins