You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-oxo-2-[2-(2-oxopyrrolidin-1-yl)anilino]ethyl] 1-phenylcyclobutane-1-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H24N2O4
assistant