Studies on the chemical constituents of Ainsliaea macrocephala

Objective To study the chemical constituents of Ainsliaea macrocephala(Franch).Methods The isolation and purification were carried out by extraction,silica gel and Sephadex LH-20 column chromatography.The compounds were identified on the basis of spectral analysis,including IR,1H-NMR,13C-NMR and MS.Results Six compounds were obtained from petrol ether fraction of ethnol extract of Ainsliaea macrocephala and their structures were determined as simiarenol(1),stigmasterol(2),Bis(2-ethylhexy1) phthalate(3),octadecanoic acid(4),2-hydroxy-linolenic acid(5),glycerol-tri-9-octadecenoate(6).Conclusion Compounds(1)~(6) were isolated from this plant for the first time.