title: [Studies on the chemical constituents of Lycianthes biflora].
abstract: OBJECTIVE
  To study the chemical constituents of Lycianthes biflora.
  
  
  METHODS
  Column chromatography was used to separate the chemical constituents. IR, MS, 1HNMR, 13CNMR and 2D-NMR technique were used to determine the structures of the isolated constituents.
  
  
  RESULTS
  Five compounds were isolated from this plant. Their structures were identified to be bifloride A (1), N-trans-cinnamoyltyramine (2), liquiritigenin (3), N-trans-p-coumaroyloctopamine (4), 1-O-beta-D-glucopyranosyl-2-N-2'-hydroxypalmitoyl-sphinga-4- trans-8-trans-dienine (5).
  
  
  CONCLUSIONS
  Compounds 1 and 2 are new compounds, the others were isolated from this plant for the first time. Compound 2 showed inhibitory effects on P-388.
authors.affiliation: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 200031, China.
authors.forename: Guang-zhong
authors.initials: GZ
authors.lastname: Yang
authors.forename: Song
authors.initials: S
authors.lastname: Zhao
authors.forename: Yuan-chao
authors.initials: YC
authors.lastname: Li
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification*; D002934:Cinnamates / Q000737:chemistry / Q000302:isolation & purification*; D007941:Leukemia P388 / Q000473:pathology; D051379:Mice; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D019657:Solanaceae / Q000737:chemistry*; D014407:Tumor Cells, Cultured; D014439:Tyramine / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D000094162:Phytoalexins
chemical_list: D015107:4-Butyrolactone; D000972:Antineoplastic Agents, Phytogenic; D002934:Cinnamates; D014439:Tyramine; C479307:N-cinnamoyltyramine; D000094162:Phytoalexins; C479306:bifloride A