Abstract
Two new aromatic compounds, trans-(tetrahydro-2-(4-hydroxy-3-methoxyphenyl)-5-oxofuran-3-yl)methyl benzoate (1), 3-(4-hydroxy-3-methoxyphenyl)-2-oxopropyl benzoate (2) and one new natural product, 4-((E)-3-ethoxyprop-1-enyl)-2-methoxyphenol (3) together with five known aromatic compounds have been isolated from the resin of Styrax tonkinensis (Pier.) Craib. Their structures were determined by physical and spectroscopic methods.
Acknowledgements
The authors thank to Miss Wen Li and Mr. Yi Sha of the Analytical Center of Shenyang Pharmaceutical University for recording the 1H-NMR, 13C-NMR and 2D-NMR spectra.