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Boxed areas indicate the structurally similar features of the two molecules. Aurovertin B comprises a (left-hand side) substituted pyrone ring linked by a rigid spacer containing conjugated double bonds to a (right-hand side) substituted dioxadicyclo[3.2.1]octane (or aglycone) ring. Resveratrol and piceatannol consist of two phenolic rings linked by a rigid spacer containing a double bond.
