title: [Isolation and identification of chemical constituents from peels of Citrus changshan-huyou Y.B. Chang].
abstract: OBJECTIVE
  To study the chemical constituents of the peels collected from Citrus changshan-huyou Y. B. Chang, and further screen the bioactive components as the lead structures.
  
  
  METHODS
  These compounds were isolated by repeated flash column chromatography on silica gel and Sephadex LH-20. The structures of isolated compounds were elucidated by using IR, EIMS, and NMR analyses.
  
  
  RESULTS
  One novel compound along with nine known compounds were obtained and identified as huyoujiasu(I), 3-hydroxy-4-methoxybenzoic acid(II), 3, 4-dihydroxybenzoic acid(III), fatty acid(IV), glyceride(V), 6, 7-dimethoxycoumarin(VI), 6', 7'-dihydroxybergamottin(VII), daucossterol A(VIII), daucossterol B(IX) and huyou-triterpenoid(X).
  
  
  CONCLUSIONS
  One new compound, Huyoujiasu, was obtained from these peels by repeated column chromatography, and the other known compounds were isolated from this fruit for the first time as well.
authors.affiliation: Pharmacy College, Taishan Medical University, Taian 271016, China. zhaoxuem@eyou.com
authors.forename: Xue Mei
authors.initials: XM
authors.lastname: Zhao
authors.forename: Xing Qian
authors.initials: XQ
authors.lastname: Ye
authors.forename: Da Yuan
authors.initials: DY
authors.lastname: Zhu
mesh_terms: D002845:Chromatography / Q000379:methods; D002957:Citrus / Q000737:chemistry* / Q000145:classification; D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification; D005638:Fruit / Q000737:chemistry*; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification*; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D003374:Coumarins; D062385:Hydroxybenzoates; D010636:Phenols; D012855:Sitosterols; C546741:huyouyisu; C009091:protocatechuic acid; C018145:scoparone; C011015:lyoniside