You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-(oxan-4-yl)-N-[3-(2-oxopyrrolidin-1-yl)propyl]-4-propan-2-ylbenzenesulfonamide using the IUPAC nomenclature.
user
C21H32N2O4S
assistant