You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(3R)-3-[4-(2-fluorophenyl)piperazin-1-yl]piperidin-1-yl]-3-(furan-2-yl)propan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H28FN3O2
assistant