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  • (E)-(3aS,4R,9S,19aR)-4-(2-Methoxy-ethoxymethoxy)-2,2,9-trimethyl-3a,4,9,10,11,12,13,14,15,16,17,18,19,19a-tetradecahydro-1,3,8-trioxa-cyclopentacyclooctadecen-7-one

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