title: [Studies on chemical constituents of leaves of Cassia angustifolia].
abstract: OBJECTIVE
  To study the chemical constituents of the leaves of Cassia angustifolia Vahl.
  
  
  METHODS
  Solvents extraction and various chromatographic methods were applied to separate and purify its constituents. The structures were elucidated on the basis of chemical evidence and spectral analysis.
  
  
  RESULTS
  Six compounds were obtained and identified as cholesterol (I), kampferol-3-rutinoside (II), calyxanthone (III), 3-methoxy-4-hydroxy-benzoic acid (IV), p-dimethylaminobenzaldehyde (V), 3,4-dihydroxybenzoic acid (VI).
  
  
  CONCLUSIONS
  Six compounds ( I -VI) are obtained from this plant for the first time.
authors.affiliation: Wenzhou Medical College, Wenzhou 325035, China. wenfeihe@yahoo.com.cn
authors.forename: Wen-fei
authors.initials: WF
authors.lastname: He
authors.forename: Jin-cai
authors.initials: JC
authors.lastname: Lu
authors.forename: Xiao-min
authors.initials: XM
authors.lastname: Yu
authors.forename: You-mei
authors.initials: YM
authors.lastname: Ding
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification*; D002681:China; D002784:Cholesterol / Q000737:chemistry / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer / Q000379:methods; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D029846:Senna Plant / Q000737:chemistry*
chemical_list: D001547:Benzaldehydes; D062385:Hydroxybenzoates; C009091:protocatechuic acid; D002784:Cholesterol; C510241:p-dimethylaminobenzaldehyde