title: [Studies on the chemical constituents of Asarum longerhizomatosum C. F. Liang et C. S. Yang].
abstract: OBJECTIVE
  To study the chemical constituents of the roots and rhizomes of Asarum longerhizomatosum.
  
  
  METHODS
  Chromatography and spectral analysis were used to isolate the constituents and elucidate their structures.
  
  
  RESULTS
  Five compounds were isolated from the ethanol extracts of the roots and rhizomes, and identified as asarone(I), beta-sitosterol(II), 2,4,5-trimethoxybenzaldehyde(III), 4-(2,4,5-trimethoxyphenyl)-3-en-butylone(IV) and 3 beta-hydroxystigmast-5-en-7-one(V).
  
  
  CONCLUSIONS
  All the compounds were isolated from the plant for the first time, and IV is a new natural product.
authors.affiliation: Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China.
authors.forename: S X
authors.initials: SX
authors.lastname: Zhang
authors.forename: S Q
authors.initials: SQ
authors.lastname: Cai
authors.forename: Y Y
authors.initials: YY
authors.lastname: Zhao
mesh_terms: D000081248:Allylbenzene Derivatives; D000840:Anisoles / Q000737:chemistry / Q000302:isolation & purification*; D030023:Asarum / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: C477963:4-(2,4,5-trimethoxyphenyl)-3-enbutylone; D000081248:Allylbenzene Derivatives; D000840:Anisoles; D012855:Sitosterols; C012195:asarone; C025473:gamma-sitosterol