title: [Studies on the chemical constituents of the stems of Alyxia sinensis (I)].
abstract: OBJECTIVE
  To demonstrate the chemical constituents of Alyxia sinensis.
  
  
  METHODS
  Phytochmical experiment was carried out, using column chromatograph technologies.
  
  
  RESULTS
  Five compounds have been isolated from the petroleum ether soluble part of the stems of A. sinensis. Their structures have been elucidated respectively as heptatriacontane(1), octatriacontane(2), 20-noatriacontannone(3), 20-nonatriacontanone(4), 20-tetraacontanoe(5), physcion(6), emodin(7), chrysophanol(8), coumarin(9), stigmasterol acetate(10), beta-sitosterol acetate(11), lupeol(12), betulin(13), stigmasterol(14), beta-sitosterol(15), ursolic acid(16), oleanolic acid(17).
  
  
  CONCLUSIONS
  All these compounds are firstly been isolated from A. sinensis. And compound 5-9, 10, 11 are also been separated from Alyxiae genus for the first time.
authors.affiliation: National Institute for the Control of Pharmaceutical and Biological Products, Beijing 100050, China.
authors.forename: Gang-li
authors.initials: GL
authors.lastname: Wang
authors.forename: Qing-yun
authors.initials: QY
authors.lastname: Hou
authors.forename: Ji
authors.initials: J
authors.lastname: Zhang
authors.forename: Ji-min
authors.initials: JM
authors.lastname: Xu
authors.forename: Ji-feng
authors.initials: JF
authors.lastname: Peng
authors.forename: Rui-chao
authors.initials: RC
authors.lastname: Lin
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification; D029062:Apocynaceae / Q000737:chemistry*; D004642:Emodin / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D000880:Anthraquinones; C008905:physcione; D004642:Emodin; C027113:chrysophanic acid