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Methyl (3aS,4S,5S,5aR,9aS,9bR)-5-[2-(furan-3-yl)ethyl]-5a,9,9-trimethyl-2-oxo-3a,4,5,6,7,8,9a,9b-octahydronaphtho[1,2-d][1,3]dioxole-4-carboxylate


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