Isolation and identification of chemical constituents from Eurycoma longifolia Jack

Objective To study the chemical constituents of Eurycoma longifolia Jack.Methods The compounds were isolated by chromatography on silica gel column,Sephadex LH-20 column and recrystallization methods,and their structures were determined on the basis of special analysis.Results Five compounds were obtained and identified as scopoletin(1),9-methoxycanthin-6-one(2),7-methoxy-β-carbolin-1-propionic acid(3),laurycolactone A(4),7-methoxyinfractin(5).Conclusions Compounds 1-4 are four known compounds and compound 5 is a new compound.