You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-(2,5-dioxopyrrolidin-1-yl)-3-methylphenyl] (3S)-1-(2-methylphenyl)-5-oxopyrrolidine-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H22N2O5
assistant