Chemical constituents in peels of Citrus changshan-huyou(III)

Objective To further study on the chemical constituents in the peels of Citrus changshan-huyou.Methods The chemical constituents were separated by repeated silica gel column chromatography,the structures were determined by spectral analyses.Results Ten compounds were obtained and identified as huyoujiasu(2'-hydroxy-malonyl-3,4-dihydroxybenzoic acid,Ⅰ),3'-hydroxy-4',5,6,7,8-pentamethoxyflavone(Ⅱ),eriodictyol(Ⅲ),tetracosanoic acid(Ⅳ),glyceryl dodecanoate(Ⅴ),neoeriocitrin(Ⅵ),naringin(Ⅶ),neohesperidin(Ⅷ),4-methoxy-3-hydroxybenzoic acid(Ⅸ),and 3,4-dihydroxybenzoic acid(Ⅹ).Conclusion 2'-hydroxy-malonyl-3,4-dihydroxybenzoic acid is a new compound and the above ten compounds are obtained from this plant for the first time.