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(1S,5S,6R,9S,10S,13R,14R,17S,18R)-14,18,22,25,25-Pentamethyl-13-[(2R)-6-methylheptan-2-yl]-20-methylidene-2,4-dioxahexacyclo[19.3.1.01,5.06,18.09,17.010,14]pentacos-21-en-3-one


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