You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-(7-bromo-3-oxo-2,5,6-triazatricyclo[6.3.1.04,12]dodeca-1(11),4,6,8(12),9-pentaen-2-yl)piperidine-2,6-dione by IUPAC nomenclature, provide its molecular formula.
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C14H9BrN4O3
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