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 N-[(Z)-3-(benzylamino)-1-(4-bromophenyl)-3-oxoprop-1-en-2-yl]furan-2-carboxamide is given. What is its corresponding molecular formula?
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C21H17BrN2O3
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