You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-(dimethylamino)phenyl]-2-(3-ethoxyphenyl)-4-hydroxy-3-(7-methoxy-1-benzofuran-2-carbonyl)-2H-pyrrol-5-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H28N2O6
assistant