You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N-[4-[(E)-N-[(5-bromofuran-2-carbonyl)amino]-C-methylcarbonimidoyl]phenyl]-2-methylpyrazole-3-carboxamide into molecular formula.
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C18H16BrN5O3
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