Chemical constituents in stems of Eurycorymbus cavaleriei

Objective To study the chemical constituents in stems of Eurycorymbus cavaleriei.Methods The compounds were isolated and purified by chromatography on silica gel,macroporous resin,RP-C18,MCI gel,Sephadex LH-20 columns,and semi-preparative HPLC,and identified by spectral analyses.Results Nine compounds were isolated and identified as()-lyoniresinol 3a-O-β-D-glucopyranoside(1),()-isolariciresinol 3a-O-β-D-glucopyranoside(2),5′-demethyl aquillochin(3),()-syringaresinol(4),methyl salicylate(5),ethyl salicylate(6),β-sitosterol(7),vanillin(8),and 3-oxotirucalla-7,24-dien-21-oic acid(9).Conclusion Compounds 1,2,and 4—9 are isolated from the plants in Eurycorymbus Hand.-Mazz.for the first time.