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  • (2R,4aR,5aS,8R,9S,10aR,11aS)-8-[(2R,3S,5R,6S)-5-Benzyloxy-6-benzyloxymethyl-2-(1-ethoxy-ethoxymethyl)-tetrahydro-pyran-3-yloxy]-2-(4-methoxy-phenyl)-9-vinyl-decahydro-1,3,5,10-tetraoxa-cyclohepta[b]naphthalene

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