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(3As,6R,7aS)-6-[(4R,5R)-5-hydroxy-2-[[(4S)-4-hydroxy-3-(tritiooxymethyl)-2,7-dioxabicyclo[4.1.0]heptan-5-yl]oxy]-3-methyl-6-(tritiooxymethyl)oxan-4-yl]oxy-7-[(2S,4R,5R)-3,4,5,6-tetramethyloxan-2-yl]oxy-4-(tritiooxymethyl)-4,6,7,7a-tetrahydro-3aH-[1,3]diox


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