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For the molecule named 1-[[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl]-N-[3-(2-oxopyrrolidin-1-yl)phenyl]piperidine-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C25H26BrN5O3
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