A new phenolic glycoside from stems of Gordonia chrysandra / 中草药

ABSTRACT

Objective: To study the chemical constituents of the stems of Gordonia chrysandra. Methods: The chemical constituents were isolated and purified by column chromatography on silica gel, MPLC and PHPLC. Their structures were elucidated on the basis of physicochemical properties and special analysis. Results: Five compounds were isolated from the stems of G. chrysandra and elucidated as 3,4-dimethoxyphenol 1-O-β-D-[6-O-(4-hydroxy-3,5-dimethoxylbenzoate)-glucopyranoside (1), 3,4,5- trimethoxyphenyl-6- O-vanilloyl-β-D-glucoside (2), 2α,3β,19α-trihydroxyolean-12-en-23,28-dioic acid (3), betulinic acid (4), 3-O-β-D-galactopyranosyl- (1→2)-[β-D-glucopyranosyl-(1→2)-α-L-arabinopyranosyl-(1→3)]-β-D-glucuronopyranosyl-3β,16α,22α,28-tetrahydroxy-22-O-tigloyloxy- olean-12-ene-23-al (5). Conclusion: Compound 1 is a new compound named chrysandroside A, and compounds 3-5 are isolated from this plant for the first time.