You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[[3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-N-[4-chloro-3-(trifluoromethyl)phenyl]piperidine-3-carboxamide into its molecular formula.
user
C22H19Cl2F3N4O2
assistant