You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule methyl (1'R,2'R,3'aS,6'aR)-5,5-dimethyl-2'-(2-methylpropanoyloxy)spiro[1,3-dioxane-2,5'-2,3,3a,4,6,6a-hexahydro-1H-pentalene]-1'-carboxylate into molecular formula.
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C19H30O6
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