Studies on the chemical constituents of Litsea lancifolia

Objective:To study the chemical constituents of Litsea lancifolia.Methods:AU compounds were isolated from the diethyl ether extract of the title herb by sillica gel column chromatogrphy,and their structures were identified by physical and chemical evidences and spectral methods.Results:Seven compounds were isolated and identified as(-)-aristortetralone(1),dehydrodiisoeugenol(2),dihydrodehydrodiconifery alcohol(3),5,7-dimethoxy-3′,4′-methylenedioxyflavan-3-ol(4),p-hydroxy-benzoic acid(5),vanillin(6),β-sitosterol(7),respectively.Conclusion:All compounds are isolated from this plant for the first time.