A new triterpenoid saponin julibroside J_(24) from the stem bark of Albiza julibrissin / 北京大学学报(医学版)

ABSTRACT

Objective:To separate chemical and active constituents from the stem bark of Albiza julibrissin . Methods:Chromatography and spectral methods were used. Results:3 O ? D xylopyranosyl (1→2) ? L arabinopyranosyl (1→6) ? D glucopyranosyl 21 O {(6 S) 2 trans 2 hydroxymethyl 6 methyl 6 O [3 O (6 S ) 2 trans 2 hydroxymethyl 6 methyl 6 hydroxy 2,7 octadienoyl) ? D xylopyranosyl] 2,7 octadienoyl} acacic acid 28 O ? D glucopyranosyl (1→3) [? L arabinofuranosyl (1→4)] ? L rhamnopyranosyl (1→2) ? D glucopyranosyl ester (1) was separated and identified. Conclusion: Compound 1 is a new saponin named as Julibroside J 24 .