You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 1-[5-bromo-2-(9-methyl-3,9-diazabicyclo[4.2.1]nonan-3-yl)pyridin-3-yl]-N-methylmethanamine into its molecular formula.
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C15H23BrN4
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