title: [Structure of secondary saikosaponins in saiko decoction].
abstract: OBJECTIVE
  To study the structures of secondary saikosaponins in saiko decoction.
  
  
  METHODS
  The structures of saikosaponins were separated from saiko decoction and identified by various separation and spectral techniques. HPLC method was adopted for identifying all of separated saikosaponins.
  
  
  RESULTS
  Eleven saikosaponins were separated from saiko decoction. Four of the seven new constitutes contained in saiko decoction were identified.
  
  
  CONCLUSIONS
  This study lays a foundation for improving the identification of secondary saikosaponins.
authors: Chemical Engineering and Pharmaceutics College, He'nan University of Science and Technology, Luoyang 471003, China. huomanlee@126.com
authors: Jun
authors: J
authors: Li
authors: Hua
authors: H
authors: Jiang
authors: Yan-Ping
authors: YP
authors: Zhang
authors: Qian
authors: Q
authors: Zhang
authors: You
authors: Y
authors: Xu
mesh_terms: D029972:Bupleurum / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D013058:Mass Spectrometry; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D004365:Drugs, Chinese Herbal; D012503:Saponins; D009828:Oleanolic Acid; C025759:saikosaponin D