You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[[4-(2-oxopyrrolidin-1-yl)phenyl]methyl]piperidine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H24ClF3N4O2
assistant