title: [Studies on the chemical constituents in herbs of Hemistepta lyrata].
abstract: OBJECTIVE
  To investigate the chemical constituents of Hemistepta lyrata.
  
  
  METHODS
  The constituents of the EtOAc-soluble portions of the 95% ethanol extract were isolated and purified by means of chromatography. Compounds were identified by their physical characteristics and spectral features.
  
  
  RESULTS
  Five compounds were isolated and identified as caffeic acid (1), tracheloside (2), uracil (3), 8-carboxymethyl-p-hydroxycinnamic acid (4), and 3-O-p-coumaroylquinic acid (5).
  
  
  CONCLUSIONS
  Compounds 1-5 were isolated from this genus for the first time.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China.
authors.forename: Zhong-jie
authors.initials: ZJ
authors.lastname: Zou
authors.forename: Jun-shan
authors.initials: JS
authors.lastname: Yang
authors.forename: Jian-hua
authors.initials: JH
authors.lastname: Ju
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D019659:Asteraceae / Q000737:chemistry*; D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D014498:Uracil / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D002109:Caffeic Acids; D005960:Glucosides; C079169:tracheloside; D014498:Uracil; D015107:4-Butyrolactone; C040048:caffeic acid