title: [Study on the chemical constituents from Cyathea spinulosa].
abstract: OBJECTIVE
  To study the chemical constituents from Cyathea spinulosa.
  
  
  METHODS
  Compounds were isolated by chromatographic techniques. Their structures were elucidated by spectral methods.
  
  
  RESULTS
  Eight compounds were isolated from the ethanol extract of Cyathea spinulosa and identified as stigmast-4-ene-3,6-dione (1), stigmast-3,6-dione (2), ergosterol (3), protocatechuic aldehyde (4), 1-O-beta-D-glucopyranosyl-(2S,3R,4E,8Z)-2-[(2-hydroxyoctadecanoyl) amido]-4,8- octadecadiene-1,3-diol (5), (2S,3S, 4R)-2-[(2'R) -2'-hydroxytetracosanoylamino]-1,3,4-octadecanetriol (6), beta-sitosterol (7), daucosterol (8).
  
  
  CONCLUSIONS
  Compounds 1-6 are isolated from this plant for the first time.
authors.affiliation: State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China. jiangjs@imm.ac.cn
authors.forename: Jian-Shuang
authors.initials: JS
authors.lastname: Jiang
authors.forename: Zhi-Lai
authors.initials: ZL
authors.lastname: Zhan
authors.forename: Zi-Ming
authors.initials: ZM
authors.lastname: Feng
authors.forename: Ya-Nan
authors.initials: YN
authors.lastname: Yang
authors.forename: Pei-Cheng
authors.initials: PC
authors.lastname: Zhang
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification*; D002396:Catechols / Q000737:chemistry / Q000302:isolation & purification*; D002783:Cholestenones / Q000737:chemistry / Q000302:isolation & purification*; D004875:Ergosterol / Q000737:chemistry / Q000302:isolation & purification; D029624:Ferns / Q000737:chemistry*; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D001547:Benzaldehydes; D002396:Catechols; D002783:Cholestenones; D012855:Sitosterols; C017726:stigmast-4-ene-3,6-dione; C005581:protocatechualdehyde; C025473:gamma-sitosterol; C011015:lyoniside; D004875:Ergosterol