You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 3,4-difluoro-N-[(3R)-1-(4-fluoro-3-methylphenyl)-2-oxopyrrolidin-3-yl]benzenesulfonamide is given. What is its corresponding molecular formula?
user
C17H15F3N2O3S
assistant