One new ent-kaurane glycoside from stems of Acanthopanax gracilistylus / 中草药

ABSTRACT

Objective: To study the chemical constituents from the stems of Acanthopanax gracilistylus. Methods: The chemical constituents of the plant were isolated and purified by column chromatography and their structures were elucidated on the basis of physico-chemical 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-D- glucopyranosyl] ester) (1), was isolated from the n-butanol part. Conclusion: Compound 1 is a new one.