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(4R,5S)-4-[(4R,5R)-4,5-Dihydroxy-5-(2-hydroxy-4-oxo-1,3-dioxetan-2-yl)-2-oxo-1,3-dioxolan-4-yl]-4,5-dihydroxy-5-(hydroxymethyl)-1,3-dioxolan-2-one


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