You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-cycloheptyl-N-[2-[4-(2-fluorophenyl)piperazin-1-yl]-2-(furan-2-yl)ethyl]oxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H33FN4O3
assistant