title: [Chemical constituents of flavonoids from rhizome of Sophora tonkinensis].
abstract: OBJECTIVE
  To study the chemical constituents of the flavonoids from Sophora tonkinensis.
  
  
  METHODS
  The compounds were isolated by chromatography on silica gel, Sephadex LH-20 column and identified by spectroscopic analysis.
  
  
  RESULTS
  Eight compounds were isolated and their structures were identified as tonkinochromane I (1), glabrol (3), lupinifolin (2), tonkinensisol (4), 8-C-prenylkaempferol (5), 7,2'-dihydroxy-4'-methoxy-isoflavanol (6), formononetin (7), and genistein (8), respectively.
  
  
  CONCLUSIONS
  Compound 1 was a new compound. And compound 6 was firstly isolated from the genus Sophora. Compounds 2, 3 and 5 were isolated from S. tonkinensis for the first time.
authors.affiliation: School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China.
authors.forename: Xingnuo
authors.initials: X
authors.lastname: Li
authors.forename: Haixia
authors.initials: H
authors.lastname: Yan
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Pang
authors.forename: Na
authors.initials: N
authors.lastname: Sha
authors.forename: Huiming
authors.initials: H
authors.lastname: Hua
authors.forename: Lijun
authors.initials: L
authors.lastname: Wu
authors.forename: De'an
authors.initials: D
authors.lastname: Guo
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005419:Flavonoids / Q000032:analysis / Q000737:chemistry*; D019833:Genistein / Q000032:analysis; D007529:Isoflavones / Q000032:analysis; D027343:Rhizome / Q000737:chemistry*; D029909:Sophora / Q000737:chemistry*
chemical_list: D005419:Flavonoids; D007529:Isoflavones; C448459:lupinifolin; C541582:tonkinochromane I; C007768:formononetin; D019833:Genistein; C420863:glabrol