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-[4-(3-oxopentyl)-3-(trifluoromethyl)phenyl]-4-(3,4,5-trichlorophenyl)-4-(trifluoromethyl)pyrrolidin-2-one .
user
C23H18Cl3F6NO2
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