You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-4-[(3S)-3-methoxypyrrolidin-1-yl]-N-methyl-3-[3-(trifluoromethoxy)phenyl]butanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H23F3N2O3
assistant