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 4-(2,6-difluoro-4-methoxyphenyl)-1-(4-methoxy-6-piperidin-4-ylpyridin-2-yl)pyrrolidin-2-one into molecular formula.
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C22H25F2N3O3
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