You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-bromo-N-[5-(5-ethyl-1,3-benzoxazol-2-yl)-2-methylphenyl]-3-methoxynaphthalene-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H23BrN2O3
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