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[(1S,5S,8S,11R,13R)-13-Acetyloxy-7,8-dihydroxy-11,15,18,18-tetramethyl-3,12,16-trioxo-2,4-dioxatetracyclo[12.3.1.01,5.06,11]octadec-14-en-7-yl]methyl acetate


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