title: [Diterpenes constituents of Tripterygium wilfordii].
abstract: OBJECTIVE
  To study the chemical constituents of Tripterygium wilfordii Hook. F.
  
  
  METHODS
  Various column chromatographies with silica gel were used for the isolation and purification. The structures of compounds were established on the basis of its IR, MS, UV, 1H NMR, 13C NMR and HRMS, 1H-1H COSY, 1H-13C COSY and NOESY.
  
  
  RESULTS
  Four diterpenoids were isolated: 16-hydroxytriptolide (I), triptolidenol (II), tripdiolide (III), 2-epitripdiolide (IV).
  
  
  CONCLUSIONS
  Compound IV is a new diterpenoid.
authors.affiliation: Fujian Institute of Medical Sciences, Fuzhou 350001, China. linsui-syy@sina.com
authors.forename: Sui
authors.initials: S
authors.lastname: Lin
authors.forename: Xian-Yong
authors.initials: XY
authors.lastname: Yu
authors.forename: Hui-Qing
authors.initials: HQ
authors.lastname: Que
authors.forename: Zhong
authors.initials: Z
authors.lastname: Chen
authors.forename: Di-Lin
authors.initials: DL
authors.lastname: Xie
authors.forename: Yuan-Chao
authors.initials: YC
authors.lastname: Li
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D029757:Tripterygium / Q000737:chemistry*
chemical_list: C517471:2-epitripdiolide; D004224:Diterpenes; C076300:16-hydroxytriptolide; C001898:tripdiolide