You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2-[4-(2-fluorophenyl)piperazin-1-yl]-2-oxoethyl] 1-(4-chlorophenyl)cyclopropane-1-carboxylate into its molecular formula.
user
C22H22ClFN2O3
assistant