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 1-[[4-[[2-(2,4-dioxo-1,3-diazaspiro[4.4]nonan-3-yl)acetyl]amino]phenyl]methyl]piperidine-3-carboxamide into molecular formula.
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C22H29N5O4
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