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3-(4-Hydroxy-2,2-dioxo-1,3,2-dioxathietan-4-yl)-6-(hydroxymethyl)-3-[(2S,3R,4S,5R,6R)-2,3,4,5-tetrahydroxy-6-(hydroxymethyl)oxan-2-yl]-1,4-dioxane-2,5-dione


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