title: [Study on the chemical constituents from Picria fel-tarrae].
abstract: OBJECTIVE
  To isolate and identify compounds from Picria fel-tarrae in order to utilize it better.
  
  
  METHODS
  Constituents from Picria fel-tarrae were isolated by several column chromatography and their structures were elucidated on the basis of chemical and spectral analysis.
  
  
  RESULTS
  Six compounds, N-benzoylphenylalanyl-L-phenylalaninol acetate (1), 1-hydroxy-7-hydroxymethyl-9,10-anthraquinone (2), 9, 16-dioxo-10,12,14-octadeca-trienoic acid (3), 5,7,4'-trihydroxy-flavone (4), beta-sitosterol (5), and daucosterol (6) were obtained from the fraction with relatively low polarity of EtOH extract of Picria fel-tarrae.
  
  
  CONCLUSIONS
  Compounds 1-6 were isolated from picria fel-tarrae Lour for the first time, and the 13C-NMR data of compounds 1-3 are provided firstly in the literature.
authors.affiliation: Institute of Chinese Medica, Beijing University of Traditional Chinese Medicine, Beijing 100102, China.
authors.forename: Li-sheng
authors.initials: LS
authors.lastname: Wang
authors.forename: Xue-min
authors.initials: XM
authors.lastname: Ma
authors.forename: Ya-jian
authors.initials: YJ
authors.lastname: Guo
authors.forename: Han-dong
authors.initials: HD
authors.lastname: Sun
authors.forename: Jie-ming
authors.initials: JM
authors.lastname: Zou
mesh_terms: D047310:Apigenin / Q000737:chemistry / Q000302:isolation & purification*; D004151:Dipeptides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D028083:Scrophulariaceae / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D004151:Dipeptides; D012855:Sitosterols; C011670:N-benzoylphenylalanylphenylalinol acetate; C025473:gamma-sitosterol; D047310:Apigenin