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 (4-bromo-3-methylphenyl)-(7-piperidin-1-yl-5-oxa-2-azaspiro[3.4]octan-2-yl)methanone into its molecular formula.
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C19H25BrN2O2
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