You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-methylpropyl 4-[(5R)-5-methyl-2,4-dioxo-1,3-oxazolidin-3-yl]piperidine-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C14H22N2O5
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