title: [Studies on chemical constituents in roots of Heracleum rapula].
abstract: OBJECTIVE
  To study the chemical constituents in roots of Heracleum rapula.
  
  
  METHODS
  The constituents were isolated by column chromatography on silica gel and ODS, and identified by spectroscopic methods.
  
  
  RESULTS
  Eight compounds, xanthotoxol (I), 8-geranyloxypsoralen (II), (+)-marmesin (III), beta-sitosterol (IV), stigmasterol (V), oleanolic acid (VI), ferulic (VII), scopoletin (VIII) were isolated and identified.
  
  
  CONCLUSIONS
  Compounds IV, V, VI, VII, VIII were isolated from this plant for the first time.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing.
authors.forename: Yuan-yan
authors.initials: YY
authors.lastname: Luu
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Cun
authors.initials: C
authors.lastname: Zhang
authors.forename: Yong-qing
authors.initials: YQ
authors.lastname: Xiao
mesh_terms: D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification; D030002:Heracleum / Q000737:chemistry*; D009828:Oleanolic Acid / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012603:Scopoletin / Q000737:chemistry / Q000302:isolation & purification; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D013265:Stigmasterol / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D003373:Coumaric Acids; D012855:Sitosterols; C025473:gamma-sitosterol; D009828:Oleanolic Acid; D013265:Stigmasterol; C004999:ferulic acid; D012603:Scopoletin