title: [Studies on chemical constituents from moss Rhodobryum roseum II].
abstract: OBJECTIVE
  To study the chemical constituents from Rhodobryum roseum.
  
  
  METHODS
  The compounds were isolated and purified by recrystallization and chromatography with silica gel and sephadex LH-20 column. Their structures were identified by physicochemical properties and spectral analysis.
  
  
  RESULTS
  Eight compounds were isolated and identified as apigenin (1), quercetin (2), oleanolic acid (3), 2alpha-hydroxyoleanolic acid (4), 2alpha-hydroxyursolic acid (5), protocatechuic acid (6), p-hydroxybenzoic acid (7), p-hydroxycinnamic acid (8).
  
  
  CONCLUSIONS
  Compounds 1-8 were isolated from R. roseum for the first time.
authors.affiliation: Department of Clinical Pharmacology, General Hospital of PLA, Beijing, China.
authors.forename: Chang
authors.initials: C
authors.lastname: Dai
authors.forename: Ping
authors.initials: P
authors.lastname: Liu
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.forename: Bo
authors.initials: B
authors.lastname: Wang
authors.forename: Ruo-yun
authors.initials: RY
authors.lastname: Chen
mesh_terms: D047310:Apigenin / Q000737:chemistry / Q000302:isolation & purification*; D019068:Bryopsida / Q000737:chemistry*; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C412810:2-hydroxyursolic acid; D014315:Triterpenes; D009828:Oleanolic Acid; D047310:Apigenin; C412811:maslinic acid