title: [Study on the chemical constituents of liposoluble steroidal and triterpenoid compounds from the stem and bark of Macaranga hemsleyana].
abstract: OBJECTIVE
  to research the chemical constituents of the liposoluble compounds from the stem and bark of Macaranga hemsleyana Pax & Hoffm.
  
  
  METHODS
  Five compounds were obtained by silica chromatography and preparative TLC from the stem and bark of Macaranga hemsleyana Pax & Hoffm., and the chemical structures of these compounds were identified by modern spectroscopy as well as physico-chemical analysis.
  
  
  RESULTS
  These compounds were identified to be beta-Sitosterol (1), Stigmast-4-en-3-one (2), Stigmast-4-en-3,6-dione (3), 3beta-O-acetyl aleuritolic acid (4) and Canophyllol (5).
  
  
  CONCLUSIONS
  The liposoluble fractions of Macaranga hemsleyana Pax & Hoffm. are mainly steroidal and triterpenoid compounds.
authors.affiliation: Hainan Provincical Key Lab of Tropical Pharmaceutical Herb Chemistry, Haikou 571158, China. wtsmount@126.com
authors.forename: Tian-shan
authors.initials: TS
authors.lastname: Wang
authors.forename: Bing-jing
authors.initials: BJ
authors.lastname: Liu
authors.forename: Shu-yan
authors.initials: SY
authors.lastname: Hua
authors.forename: Tian-lue
authors.initials: TL
authors.lastname: Li
authors.forename: Guang-ying
authors.initials: GY
authors.lastname: Chen
mesh_terms: D002783:Cholestenones / Q000737:chemistry / Q000302:isolation & purification; D019665:Euphorbiaceae / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*; D013265:Stigmasterol / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D002783:Cholestenones; D013256:Steroids; D014315:Triterpenes; C488470:stigmast-4-en-3-one; C017726:stigmast-4-ene-3,6-dione; D013265:Stigmasterol