title: [Studies on the alkaloids from stem of Artabotrys hainanensis].
abstract: OBJECTIVE
  To investigate the alkaloids from the stem of Artabotrys hainanensis.
  
  
  METHODS
  Compounds in plant extracts were separated by silica gel and sephadex LH-20 column chromatography. Chemical structures were elucidated by chemical and spectral analyses including UV, 1H-NMR, 13C-NMR, ESIMS and ESI-MS-MS.
  
  
  RESULTS
  Eight alkaloids were isolated and identified as spinosine (1), 3-hydroxynornuciferine (2), juzirine (3), artabotrine (4), liridine (5), assimilobine (6), isococlaurine (7), N-demethylarmepavine (8).
  
  
  CONCLUSIONS
  All alkaloids were isolated from this plant for the first time and compounds 1, 3, 7 and 8 were isolated from genus Artabotrys for the first time.
authors.affiliation: Department of Chemistry, Hainan Normal University, Haikou 571158, China.
authors.forename: Chang-ri
authors.initials: CR
authors.lastname: Han
authors.forename: Guo-yuan
authors.initials: GY
authors.lastname: Zhu
authors.forename: Guang-ying
authors.initials: GY
authors.lastname: Chen
authors.forename: Han-yang
authors.initials: HY
authors.lastname: Zhang
authors.forename: He-ping
authors.initials: HP
authors.lastname: Bi
authors.forename: Hong-xun
authors.initials: HX
authors.lastname: Fang
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D029061:Annonaceae / Q000737:chemistry*; D001600:Berberine Alkaloids / Q000737:chemistry / Q000302:isolation & purification; D007546:Isoquinolines / Q000737:chemistry / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D001600:Berberine Alkaloids; D007546:Isoquinolines; C100548:spinosine; C417577:juzirine