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New syntheses of novel arylxanthones

Xanthones represent an outstanding class of oxyg~1_1ated heterocycles widespread in nature, commonly distributed in several higher plant families, such as Gentianaceae, Guttiferae and Polygalaceae and in a few families of fungi and lichens [1]. Both natural and synthetic derivatives often endowed with interesting pharmacological properties (e.g. anti-inflammatory, antitumour and antioxidant activities [1,2]. Na...