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Two novel flavonoids (±)-Anastatins A and B as well as 14 analogs, which containing a benzofuran moiety, were synthesized by using halogenation, Suzuki coupling reaction and an oxidation/Oxa-Michael reaction cascade as the key steps. The structures of the new flavonoids were confirmed by 1H NMR, 13C NMR and HRMS. The antioxidant activities of them as well as the key intermediates were evaluated by...
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