title: [Studies on the chemistry of two new compounds of Hemistepta lyrata].
abstract: OBJECTIVE
  To study the chemical constituents of Hemistepta lyrata.
  
  
  METHODS
  To separate compounds with various chromatography technology and to elucidate their structures by chemical and spectral analysis.
  
  
  RESULTS
  Two compounds were isolated from Hemistepta lyrata and their structures were determined as hemiceramide (I), hemisterpene ether (II).
  
  
  CONCLUSIONS
  Compounds I and II are new compounds.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy Medical Sciences, Peking Union Medical College, Beijing 100094, China.
authors.forename: Yu-lin
authors.initials: YL
authors.lastname: Ren
authors.forename: Jun-shan
authors.initials: JS
authors.lastname: Yang
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D002518:Ceramides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D002518:Ceramides; D014315:Triterpenes; C479308:hemisceramide; C479309:hemistriterpene ether