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  • (2E,4E)-5-[(2R,3R,3aR,4R,5R,6aS)-5-Ethyl-4-hydroxy-3-(4-methoxy-benzyloxy)-3a,4-dimethyl-hexahydro-furo[2,3-b]furan-2-yl]-penta-2,4-dienoic acid ethyl ester

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