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[(1S,2R,5S,7R,11S,13S,14S,17R,18R)-2,18-Dimethyl-17-[(2R)-6-methylheptan-2-yl]-9-oxo-8,10-dioxapentacyclo[11.7.0.02,7.07,11.014,18]icosan-5-yl] acetate


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