摘要
Phytochemical investigation on Forsythia suspensa(Thunb.) Vahl afforded ten compounds, including five lignan glycosides and five phenylethanoid glycosides. The compounds were isolated by using HP-20 macroporous resin, silica gel, octadecyl silica gel(ODS), size exclusion chromatography resin HW-40 chromatography, and preparative HPLC. The structures were established through application of extensive spectroscopic methods, including ESI-MS, 1D- and 2D-NMR spectroscopy. They were identified as forsythialanside E(1), 8′-hydroxypinoresinol-4′-O-β-D-glucoside(2), 8′-hydroxypinoresinol(3), lariciresinol-4′-O-β- D-glucoside(4), lariciresinol-4-O-β-D-glucoside(5), forsythoside H(6), forsythoside I(7), forsythoside F(8), plantainoside B(9), and plantainoside A(10). Compound 1 was a new lignan glycoside.
Phytochemical investigation on Forsythia suspensa（Thunb.） Vahl afforded ten compounds, including five lignan glycosides and five phenylethanoid glycosides. The compounds were isolated by using HP-20 macroporous resin, silica gel, octadecyl silica gel（ODS）, size exclusion chromatography resin HW-40 chromatography, and preparative HPLC. The structures were established through application of extensive spectroscopic methods, including ESI-MS, 1D- and 2D-NMR spectroscopy. They were identified as forsythialanside E（1）, 8′-hydroxypinoresinol-4′-O-β-D-glucoside（2）, 8′-hydroxypinoresinol（3）, lariciresinol-4′-O-β- D-glucoside（4）, lariciresinol-4-O-β-D-glucoside（5）, forsythoside H（6）, forsythoside I（7）, forsythoside F（8）, plantainoside B（9）, and plantainoside A（10）. Compound 1 was a new lignan glycoside.
