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[(1S,5S,6R,9R,12R,13S)-9-Acetyloxy-12-(3-acetyloxyoxetan-3-yl)-11-[(1S)-1-hydroxyethyl]-6-[(2R,3S)-2-hydroxy-5-methyl-3-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoyl]oxy-7,11,14,14-tetramethyl-3,10-dioxo-2,4-dioxatricyclo[6.5.1.01,5]tetradec-7-en-13-yl]


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