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-[(1S)-1-(5-tert-butylnaphthalen-1-yl)-2,2,2-trifluoroethyl]-4,4-dimethylpyrazolidin-3-one .
user
C21H25F3N2O
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