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-(3-cyanophenyl)-3-oxo-2-(pyridin-3-ylmethyl)-2,9-diazaspiro[5.5]undecane-9-carboxamide is given. What is its corresponding molecular formula?
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C23H25N5O2
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