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Chemical composition of the endocarps of fruits of Styrax officinalis L.

Endocarps of fruits of Styrax officinalis L. have been subjected to a phytochemical investigation. Five compounds, americanin A (1), egonololeat (2), egonol-2‴-metil butanoat (3), egonolgentiobiside (4) and homoegonolgentiobiside (5) were isolated. Their structures were elucidated by using spectroscopic methods and comparison with the literature data. This is the first report of the presence of compound 1 and compound 2 in the genus Styrax (Styracaceae family) and S. officinalis L. species, respectively.