title: [Studies on flavonoids and amides from herbs of Solanum lyratum].
abstract: OBJECTIVE
  To investigate the chemical constituents in 95% alcohol extract of Solanum lyratum.
  
  
  METHODS
  The compounds were isolated by column chromatography over silica gel, and purified by Sephadex LH-20 column chromatography and preparative TLC. The structures were elucidated on the basis of physicochemical properties and spectral data.
  
  
  RESULTS
  Eleven compounds were isolated and identified as: formononetin (1), vanillic acid (2), genistein (3), apigenin (4), N-trans-feruloyltyramine (5), N-p-coumaroyltyramine (6), daidzein (7), caffeic aicd (8), protocatechuic acid (9), daidzin (10), and N-trans-feruloyl-3-methyldopamine (11).
  
  
  CONCLUSIONS
  For the first time, compound 11 was separated from Solanaceae plant, and compounds 5 and 10 were isolated from Solanum, and compounds 1, 3, 4, 7 and 9 were obtained from this plant for the first time.
authors.affiliation: School of Pharmaceutical Science, Yantai University, Yantai 264005, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Ren
authors.forename: Li
authors.initials: L
authors.lastname: Shen
authors.forename: Shengjun
authors.initials: S
authors.lastname: Dai
mesh_terms: D000438:Alcohols / Q000737:chemistry; D000577:Amides / Q000032:analysis* / Q000302:isolation & purification; D005419:Flavonoids / Q000032:analysis* / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry; D032322:Solanum / Q000737:chemistry*
chemical_list: D000438:Alcohols; D000577:Amides; D005419:Flavonoids