You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (3,4-dimethyl-2,5-dioxopyrrolidin-1-yl) (7,7-dimethyl-2-oxo-1-bicyclo[2.2.1]heptanyl)methanesulfonate .
user
C16H23NO6S
assistant