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-(furan-2-yl)-4-methyl-2,5-dioxoimidazolidin-1-yl]-N-[(4-methylphenyl)methyl]acetamide into molecular formula.
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C18H19N3O4
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