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 5-(5-bromo-2-methoxyphenyl)-2-methylsulfanyl-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-4,7-dione is given. What is its corresponding molecular formula?
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C15H14BrN3O3S
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