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(1R,3S,4aR,6aS,12aR,12bS)-3,4a,8-trihydroxy-3-methyl-1-((triisopropylsilyl)oxy)-1,2,3,4,4a,12b-hexahydro-6a,12a-epoxytetraphene-7,12-dione
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(1R,3S,4aR,6aS,12aR,12bS)-3,4a-dihydroxy-3-methyl-7,12-dioxo-1-((triisopropylsilyl)oxy)-1,2,3,4,4a,7,12,12b-octahydro-6a,12a-epoxytetraphen-8-yl acetate