A new triterpenoid glycoside from the roots of Ilex asprella.
Fjalë kyçe
Abstrakt
OBJECTIVE
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 (3β)-19-hydroxy-28-oxours-12-en-3-yl β-D-glucopyranosiduronic acid n-butyl ester (1), ilexasoside A (2), monepaloside F (3), and ilexoside A (4).
CONCLUSIONS
Compound 1 is a new triterpenoid glycoside, and compounds 3 and 4 were isolated from this plant for the first time.