title: [Chemical constituents of Periploca forrestii].
abstract: OBJECTIVE
  To study the constituents of the stems of Periploca forrestii.
  
  
  METHODS
  The compounds were separated and purified by silica gel column chromatography, recrystallization and high-performance liquid chromatography. The structures were identified by various spectroscopic methods.
  
  
  RESULTS
  Nine compounds were isolated and identified as 3-O-acetyloleanolic acid (1), 14-ursen-3-ol-1-one (2), taraxasterol (3), jacoumaric acid (4), periplogenin (5), 2alpha,3beta-dihydroxyursolic acid (6), E-p-hydroxy-cinnamic acid (7), caffeic acid (8), proanthocyanidin A2 (9).
  
  
  CONCLUSIONS
  All compounds except 6 were isolated from this plant for the first time, compound 4, 9 were obtained from the Periploca for the first time.
authors.affiliation: The Research Center for Quality Control of Natural Medicine, Guizhou Normal University, Guiyang 550001, China.
authors.forename: Xiuhai
authors.initials: X
authors.lastname: Gan
authors.forename: Xin
authors.initials: X
authors.lastname: Zhou
authors.forename: Huaguo
authors.initials: H
authors.lastname: Chen
authors.forename: Xiaojian
authors.initials: X
authors.lastname: Gong
authors.forename: Chao
authors.initials: C
authors.lastname: Zhao
mesh_terms: D002109:Caffeic Acids / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D004073:Digitoxigenin / Q000031:analogs & derivatives / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D031109:Periploca / Q000737:chemistry*; D044945:Proanthocyanidins / Q000737:chemistry; D013261:Sterols / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry
chemical_list: D002109:Caffeic Acids; D044945:Proanthocyanidins; D013261:Sterols; D014315:Triterpenes; D004073:Digitoxigenin; C473740:proanthocyanidin A2; C052658:oleanolic acid 3-acetate; C079988:taraxasterol; C008813:periplogenin; C040048:caffeic acid