You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 4-(3-bromo-4-methylphenyl)-7-(3,4-dichlorophenyl)-1,3,4,6,7,8-hexahydroquinoline-2,5-dione is given. What is its corresponding molecular formula?
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C22H18BrCl2NO2
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