title: [Studies on phenolic constituents from leaves of pineapple (Ananas comosus)].
abstract: OBJECTIVE
  To study the phenolic constituents of the leaves of pineapple.
  
  
  METHODS
  Chromatographic methods were used to isolate compounds from the leaves of pineapple and spectroscopic methods were used to identify the structures of the isolated compounds.
  
  
  RESULTS
  7 compounds, ananasate (1), 1-O-caffeoylglycerol (2), 1-O-p-coumaroylglycerol (3), caffeic acid (4), p-coumaric acid (5), beta-sitosterol (6) and daucosterol (7), were isolated from the leaves of pineapple.
  
  
  CONCLUSIONS
  1 was a new compound, and others were obtained from this plant for the first time.
authors.affiliation: Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Yi
authors.initials: Y
authors.lastname: Ding
authors.forename: Dong-ming
authors.initials: DM
authors.lastname: Xing
authors.forename: Jin-ping
authors.initials: JP
authors.lastname: Wang
authors.forename: Li-jun
authors.initials: LJ
authors.lastname: Du
mesh_terms: D031230:Ananas / Q000737:chemistry*; D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification; D008968:Molecular Conformation; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011422:Propionates
chemical_list: D002109:Caffeic Acids; D003373:Coumaric Acids; D011422:Propionates; C522634:ananasate; C495469:p-coumaric acid; C040048:caffeic acid