title: [Studies on chemical constituents of Pholidota yunnanensis].
abstract: OBJECTIVE
  To investigate the chemical constituents from Pholidota yunnanensis.
  
  
  METHODS
  Various chromatographic techniques were employed for isolation and purification of the constituents. The structures were elucidated by chemical and spectral analyses.
  
  
  RESULTS
  Seven compounds were obtained and they were identified by spectroscopic analysis as n-nonacosane, cyclopholidone, n-dotriacontanoic acid, n-octacostyl ferulate, cyclopholidonol, cycloneolitsol and beta-sitosterol, respectively.
  
  
  CONCLUSIONS
  n-octacostyl ferulate and cycloneolitsol were isolated from genus Pholidota for the first time.
authors.affiliation: Department of Pharmacognosy, China Pharmaceutical University, Nanjing 210038, China.
authors.forename: Zhi-ming
authors.initials: ZM
authors.lastname: Bi
authors.forename: Zheng-tao
authors.initials: ZT
authors.lastname: Wang
authors.forename: Luo-shan
authors.initials: LS
authors.lastname: Xu
authors.forename: Guo-jun
authors.initials: GJ
authors.lastname: Xu
mesh_terms: D000473:Alkanes / Q000737:chemistry / Q000302:isolation & purification; D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D005227:Fatty Acids / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D029595:Orchidaceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D000473:Alkanes; D002109:Caffeic Acids; D005227:Fatty Acids; D013256:Steroids; C504155:cycloneolitsol; C504154:n-octacostyl ferulate; C047577:nonacosane; C049204:dotriacontanoic acid