A new triterpene saponin from roots of Camellia oleifera / 中草药

ABSTRACT

Objective: To study the chemical constituents from the roots of Camellia oleifera. Methods: The chemical constituents were isolated and purified by column chromatography on silica gel, ODS, Sephadex LH-20, and PHPLC. Their structures were elucidated on the basis of physicochemical properties and spectroscopic analysis. Results: Three compounds were isolated from the roots of C. oleifera and elucidated as 3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→2)-α-L-arabinopyranosyl-(1→3)]- β-D-glucuronopyranosyl-3β,15α,16α,21β,22α,28-hexahydroxy-21-O-acetyl-22-O-angeloyloxyolean-12-ene (1), gordonoside J (2), and camelliasaponin B1 (3). Conclusion: Compound 1 is a new compound named camelliasaponin Ac, and compounds 2 and 3 are isolated from the roots of this plant for the first time.