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 tert-butyl 8-[6-(4-cyano-2-methylanilino)-5-methylpyrimidin-4-yl]oxy-5-azaspiro[2.5]octane-5-carboxylate into molecular formula.
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C25H31N5O3
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