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1-[(4R,5R)-4-Methyl-5-[(2R,4R)-4-methyl-3-oxohexan-2-yl]-2-oxo-1,3-dioxolan-4-yl]propyl (3S,5R,6S)-5-[[(3aR,4S)-1,6-dimethyl-2-oxo-4,6,7,7a-tetrahydro-3aH-pyrano[4,3-d][1,3]oxazol-4-yl]oxy]-3-[(2R,5R)-5-hydroxy-4,6-dimethyloxan-2-yl]oxy-6-methoxy-2,4-dime


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