title: [Study on biligustilides from Angelica sinensis].
abstract: OBJECTIVE
  To study the chemical constituents of Angelica sinensis.
  
  
  METHODS
  The constituents were separated by chromatographic methods, and their structures were identified on the basis of spectroscopic analysis.
  
  
  RESULTS
  Eight compounds were isolated and identified as levistolide A (1), senkyunolide O (2), (3Z, 3Z')-6.8', 7.3'-diligustilide (3), tokinolide B (4), isotokinolide B (5), (3'Z)-(3R, 8S, 3a'R, 6'S)-3, 3a': 8, 6'-biligustilide (6), E, E'-3. 3', 8. 8'-diligustilide (7) and E, E'-3. 3', 8. 8'-isodiligustilide (8), which are all diligustilides.
  
  
  CONCLUSIONS
  Compound 7 was obtained from the plant for the first time; compounds 6 and 8 are new compounds.
authors.affiliation: Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100083, China.
authors.forename: Xin-Hua
authors.initials: XH
authors.lastname: Lu
authors.forename: Jin-Juan
authors.initials: JJ
authors.lastname: Zhang
authors.forename: Xue-Xia
authors.initials: XX
authors.lastname: Zhang
authors.forename: Hong
authors.initials: H
authors.lastname: Liang
authors.forename: Yu-Ying
authors.initials: YY
authors.lastname: Zhao
mesh_terms: D029971:Angelica sinensis / Q000737:chemistry*; D001572:Benzofurans / Q000737:chemistry; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D001572:Benzofurans; D004365:Drugs, Chinese Herbal; C523615:levistolide A; C045855:3-N-butyl-4,5-dihydrophthalide