[Ethyl acetate-soluble chemical constituents from Callicarpa kwangtungensis].

ABSTRACT

OBJECTIVE: To study the ethyl acetate-soluble chemical constituents of Callicarpa kwangtungensis. METHODS: The chemical constituents were isolated by column chromatography on silica gel, Sephadex LH-20 and MPLC. Their chemical structures were elucidated on the basis of special analysis. RESULTS: Seven compounds were isolated from ethyl acetate part, whose structures were elucidated as caffeic acid(1),2α,3α, 19α-trihyhydroxy-urs-12-en-28-O-ß-D-glucopyranoside (2),2α,3, 19α-trihyhydroxy-olean-12-en-28-O-ß-D-glucopyranoside (3), 2α, 3α, 19α-trihyhydroxy-olean-12-en-28-O-ß-D-glucopyranoside (4), ferulic acid (5), 2α, 3ß, 19α-trihyhydroxy-urs-12-en-28-O-ß-D-glucopyranoside(6), and ( + )-isolariciresinol-9-O-ß-D-glucopyranoside(7). CONCLUSION: All these compounds are isolated from this plant for the first time.