You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 4-fluoro-N-[2-(2-methylpropylamino)-2-oxo-1-[1-(thiophene-2-carbonyl)piperidin-4-yl]ethyl]benzamide ?
user
C23H28FN3O3S
assistant