title: [Studies on chemical constituents from Chinese medicinal plant Hemistepta lyrata Bunge].
abstract: OBJECTIVE
  To separate and identify the chemical constituents of the whole plant.
  
  
  METHODS
  The compounds were extracted with solvents, isolated by column chromatography and identified by spectroscopic methods, such as IR, MS and 1H NMR.
  
  
  RESULTS
  Five compounds were identified as hentriantane I, taraxasteryl acetate II, taraxasterol III, beta-sitosterol IV, and stigmasterol V.
  
  
  CONCLUSIONS
  The compounds III and V were obtained from the plant for the first time.
authors.affiliation: Institute of Medicinal Plants, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100094, China.
authors.forename: Y L
authors.initials: YL
authors.lastname: Ren
authors.forename: J S
authors.initials: JS
authors.lastname: Yang
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification*; D013265:Stigmasterol / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012855:Sitosterols; D013261:Sterols; D014315:Triterpenes; C025473:gamma-sitosterol; C079988:taraxasterol; D013265:Stigmasterol