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 N-(5-chloropyridin-2-yl)-1-[1-(2-methoxyphenyl)-5-oxopyrrolidine-3-carbonyl]piperidine-4-carboxamide is given. What is its corresponding molecular formula?
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C23H25ClN4O4
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