title: [Studies on chemical constituents from the bark of Morus macroura].
abstract: OBJECTIVE
  To study the chemical constituents from the bark of Morus macroura.
  
  
  METHODS
  The compounds were isolated with silica gel column chromatography and their structures were elucidated on the basis of chemical evidences and spectral analysis (IR, EI-MS, 1H-NMR, 13C-NMR).
  
  
  RESULTS
  Five compounds were identified as alpha-amyrin acetate (1), gult-5-en-3 beta-yl acetate (2), 3 beta-hydroxylup-20 (29)-en-28-oic acid (3), 3 beta-hydroxylup-12-en-28-oic acid (4), butyrospermol acetate (5).
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Wu
authors.forename: Sheng-guo
authors.initials: SG
authors.lastname: Sun
authors.forename: Ruo-yun
authors.initials: RY
authors.lastname: Chen
mesh_terms: D031625:Morus / Q000737:chemistry*; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D009930:Organic Chemicals; D024301:Plant Bark / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals; D010936:Plant Extracts; C487054:butyrospermol acetate; C487053:gult-5-en-3 beta-yl acetate; D009828:Oleanolic Acid; C036380:beta-amyrin