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 1-(7,7-dimethyl-2-oxo-1-bicyclo[2.2.1]heptanyl)-N-[3-methoxy-4-(2-oxopyrrolidin-1-yl)phenyl]methanesulfonamide using the IUPAC nomenclature.
user
C21H28N2O5S
assistant