title: [Chemical constituents of Swertia hispidicalyx].
abstract: OBJECTIVE
  To study the chemical constituents of Swertia hispidicalyx.
  
  
  METHODS
  The EtOAc part of S. hispidicalyx was chromatographied by various column chromatography methods, and the isolates were identified based on spectroscopic analyses (MS, 1H-and 13C-NMR).
  
  
  RESULTS
  Eleven compounds were isolated from S. hispidicalyx and characterized as 1,3,5,8-tetrahydroxyxanthone (1), 1,5,8-trihydroxy-3-methoxyxanthone (2), gentiolactone (3), swertiamarin (4), 3,4-dihydro-1H,6H,8H-naphtho [1, 2-c:4, 5-c', d'] dipyrano-1,8-dione (5), (+)-syringaresinol (6), trans-coniferyl aldehyde (7), maslinic acid (8), oleanolic acid (9), daucosterol (10), and -sitosterol (11).
  
  
  CONCLUSIONS
  Compounds 1-11 were obtained from S. hispidicalyx for the first time.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.
authors.forename: Fuqiang
authors.initials: F
authors.lastname: Jiang
authors.forename: Xuemei
authors.initials: X
authors.lastname: Zhang
authors.forename: Yunbao
authors.initials: Y
authors.lastname: Ma
authors.forename: Chang'an
authors.initials: C
authors.lastname: Geng
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Jiang
authors.forename: Jijun
authors.initials: J
authors.lastname: Chen
mesh_terms: D000998:Antiviral Agents / Q000302:isolation & purification* / Q000494:pharmacology; D006515:Hepatitis B virus / Q000187:drug effects*; D029967:Swertia / Q000737:chemistry*
chemical_list: D000998:Antiviral Agents