Abstract
AbstractWe describe the first total syntheses of two ellagitannins, laevigatins A and E. Laevigatin A comprises a 2,3‐O‐(S)‐hexahydroxydiphenoyl‐α‐D‐glucose unit, whose anomeric oxygen atom forms a dehydrodigalloyl ester. Laevigatin E is a dimeric ellagitannin with structural motifs similar to those of laevigatin A. A recently developed method for synthesizing C–O digallates allowed the synthesis of more than 1 g of laevigatin A. The abundant supply allowed the synthesis of laevigatin E, an achievement that implies that more complex ellagitannins could be accessible.
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