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Methyl (2R,4R,5R,6S)-4-[(2S,3S,4S,5S,6R)-6-[(1S)-1,2-dihydroxyethyl]-3,4,5-trihydroxyoxan-2-yl]oxy-5-hydroxy-6-[(4R)-2-oxo-1,3-dioxolan-4-yl]-2-prop-2-enoxyoxane-2-carboxylate


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