You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-[(3R)-1-(2-cyano-3-fluorophenyl)piperidin-3-yl]-1H-pyrazol-4-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H18FN5O
assistant