You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-(dimethylamino)phenyl]-3-(2,2-dimethylpropanoyl)-4-hydroxy-2-phenyl-2H-pyrrol-5-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H26N2O3
assistant