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Plants in the genus Acer include medicinal plants and deciduous tree species in which several bioactive compounds have been isolated. In this study, flavonoids were isolated from the aerial parts of Acer okamotoanum by open column chromatography and identified by spectroscopic analysis as afzelin, quercitrin, and isoquercitrin. Among these flavonoids, quercitrin and isoquercitrin exhibited potent...
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