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 [3-[2-(2-methoxyanilino)-2-oxoethyl]-1,2,4-oxadiazol-5-yl]methyl 2-(3-bromophenoxy)acetate is given. What is its corresponding molecular formula?
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C20H18BrN3O6
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