RESUMEN
Objective To study the chemical constituents of the EtOAc soluble fraction obtained from the stems and branches of Euonymus alatus with anti-myocardial ischemic effect. Methods Chemical constituents were isolated and purified by solvent extraction together with various chromatographic techniques, and the structures were identified by physicochemical properties and spectral analyses. ResultsFive compounds, 1-[3-?-D-glucopyranosyloxy)-4, 5-dihydroxyphenyl]-ethanone (Ⅰ), phenethyl alcohol 8-O-?-D-glucopyranosyl-(1→2)-?-D-glucopyranoside (Ⅱ), eugenyl-O-?-D-glucopyranoside (Ⅲ), hyperin (Ⅳ), and hesperidin (Ⅴ) were isolated. Conclusion Compound Ⅰ is determined as a new compound named guijianyuside. Compounds Ⅱ and Ⅲ are isolated from this plant for the first time.