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(E)-(4R,5S)-5-((3E,10E,12E)-(1R,7S,9S,14R,15R)-10,14-Dimethyl-5,17-dioxo-9-triisopropylsilanyloxy-6,16-dioxa-bicyclo[13.3.1]nonadeca-3,10,12-trien-7-yl)-4-methoxy-3-methyl-hex-2-enal
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(3E,10E,12E)-(1R,7S,9S,14R,15R)-7-((E)-(1S,2R)-5-Hydroxy-2-methoxy-1,3-dimethyl-pent-3-enyl)-10,14-dimethyl-9-triisopropylsilanyloxy-6,16-dioxa-bicyclo[13.3.1]nonadeca-3,10,12-triene-5,17-dione
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