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[(1S,5S,6R,9R,11S,12R,13S)-9-Acetyloxy-11-[(1S)-2-[(2R,3S)-3-acetyloxyoxetan-2-yl]-1-carbonochloridoyloxyethyl]-6-hydroxy-7,11,12,14,14-pentamethyl-3,10-dioxo-2,4-dioxatricyclo[6.5.1.01,5]tetradec-7-en-13-yl] benzoate


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