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-[(4R)-4-(1,3-benzodioxol-5-yl)-4-methyl-2,5-dioxoimidazolidin-1-yl]-N-(2,4-dimethylphenyl)acetamide into molecular formula.
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C21H21N3O5
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