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 1-(3,4-dimethylphenyl)-4-[4-(2-methoxyethoxymethyl)piperidine-1-carbonyl]pyrrolidin-2-one is given. What is its corresponding molecular formula?
user
C22H32N2O4
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