A New ent-Kaurane Glycoside from the Stems of Acanthopanax gracilistylus / 中草药·英文版

ABSTRACT

Objective To study the chemical constituents from the stems of Acanthopanax gracilistylus.Methods Thechemical constituents of the plant were isolated and puried by column chromatography and their structures wereelucidated on the basis of physicochemical properties and spectral data.Results A new ent-kaurane glycoside,named kaurane acid glycoside A { 16α,17-dihydroxy-ent-kauran-19-oic 19-[β-D-glucopyranosyl-(1→2)-β-Dglucopyranosyl]ester}(1),was isolated from the n-butanol part.Conclusion Compound 1 is a new one.