You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-[4-(4-chlorophenyl)-2,5-dioxo-4,7-dihydro-3H-furo[3,4-d]pyrimidin-1-yl]-N-methyl-N-(3-methylphenyl)acetamide into molecular formula.
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C22H20ClN3O4
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