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-[2-(4-methoxyphenyl)ethyl]-8-[(3-methoxyphenyl)methyl]-3-propan-2-yl-1,3,8-triazaspiro[4.5]decane-2,4-dione into molecular formula.
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C27H35N3O4
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