title: [Chemical constituents of Psammosilene tunicoides and bacteriostatic activity].
abstract: OBJECTIVE
  To study the chemical constituents and bacteriostatic activity of Psammosilene tunicoides.
  
  
  METHODS
  Such methods as silica gel column chromatography and gel column chromatography were adotped separate and purify the compounds, and their structures were indentified on the basis of their spectral data and physicochemical properties.
  
  
  RESULTS
  Ten compounds were separated from ethanol extracts and identified as methyl-4-hydroxybenzoate (1), N-methylsaccharin (2), 3-hydroxy-4-methoxybenzoic acid (3), germanicol (4), tricosanoic acid (5), octacosane (6), amber acid (7), succinic acid (8), stellarine A (9), and oleanane-12-ene-3alpha, 16alpha-two hydroxy-23,28-acid (10).
  
  
  CONCLUSIONS
  All compounds except compound 10 were separated from P. tunicoides for the first time. Compounds 8 and 9 showed the bacteriostatic activity to a certain extent.
authors.affiliation: Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang 550001, China. 1536128232@qq.com
authors.forename: Long
authors.initials: L
authors.lastname: Wang
authors.forename: Xiao-Jian
authors.initials: XJ
authors.lastname: Gong
authors.forename: Xin
authors.initials: X
authors.lastname: Zhou
authors.forename: Chun
authors.initials: C
authors.lastname: Xian
authors.forename: Shi-Lin
authors.initials: SL
authors.lastname: Yang
authors.forename: Zhan-Nan
authors.initials: ZN
authors.lastname: Yang
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D029748:Caryophyllaceae / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D004365:Drugs, Chinese Herbal