You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 2-[2,4-dimethoxy-3-[(2-methylpropan-2-yl)oxycarbonyl]phenyl]-4-(2-methylpropyl)-1,2-oxazolidine-5-carboxylic acid is given. What is its corresponding molecular formula?
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C21H31NO7
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