You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-[1-[2-[(2-methyl-5-pyrrolidin-1-ylphenyl)methyl]-2,8-diazaspiro[4.5]decane-8-carbonyl]pyrazol-3-yl]ethanone .
user
C26H35N5O2
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