title: [Chemical constituents from herbs of Swertia delavayi].
abstract: OBJECTIVE
  To isolate and identify the chemical constituents of 95% alcohol extract from Swertia delavayi.
  
  
  METHODS
  The compounds were isolated and purified by column chromatogrphy and their structures were identified by the physicochemical properties and spectral analyses.
  
  
  RESULTS
  Seven compounds were isolated and identified as oleanolic acid (1), gentiopcroside (2), swertiamarin (3), daucosterol (4), swertiadecoraxanthone-II (5), isovitexin (6), isoorientin (7).
  
  
  CONCLUSIONS
  Compounds 2-7 were isolated from S. delavayi for the first time. While the compound 6 was firstly reported from the genus Swertia.
authors.affiliation: Department of Pharmacy, Dali University, Dali 671000, China. long7484@126.com
authors.forename: Cong-long
authors.initials: CL
authors.lastname: Xia
authors.forename: Guang-ming
authors.initials: GM
authors.lastname: Liu
authors.forename: Hao
authors.initials: H
authors.lastname: Zhang
mesh_terms: D047310:Apigenin / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry; D057888:Iridoid Glucosides; D039823:Iridoids / Q000737:chemistry; D047311:Luteolin / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D009828:Oleanolic Acid / Q000737:chemistry; D011753:Pyrones / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D029967:Swertia / Q000737:chemistry*
chemical_list: D005960:Glucosides; D057888:Iridoid Glucosides; D039823:Iridoids; D011753:Pyrones; D012855:Sitosterols; C012997:gentiopicroside; C013270:swertiamarin; D009828:Oleanolic Acid; D047310:Apigenin; C057912:homoorientin; C049772:isovitexin; D047311:Luteolin; C011015:lyoniside