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[4-[[7-Acetyloxy-4-(hydroxymethyl)-2-oxo-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-6-yl]oxy]-2-(hydroxymethyl)-5-methyl-6-(phosphanylamino)oxan-3-yl] acetate


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