A new triterpenoid glycoside from the roots of Ilex asprella

AIM:To study the chemical constituents of the roots of Ilex asprella Champ.ex Benth.METHODS:Compounds were isolated by silica gel,ODS,and Sephadex LH-20 column chromatography,and their structures were elucidated on the basis of physicochemical properties and spectroscopic analysis.RESULTS:Four triterpenoid glycosides were isolated and identified as(3)-19-hydroxy-28-oxours-12-en-3-yl -D-glucopyranosiduronic acid n-butyl ester(1),ilexasoside A(2),monepaloside F(3),and ilexoside A(4).CONCLUSION:Compound 1 is a new triterpenoid glycoside,and compounds 3 and 4 were isolated from this plant for the first time.