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-ethyl-7-methyl-3-[3-[4-[(2-oxopyrrolidin-1-yl)methyl]triazol-1-yl]azetidine-1-carbonyl]-1,8-naphthyridin-4-one is given. What is its corresponding molecular formula?
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C22H25N7O3
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