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 2-[4-(2,4-dimethoxyphenyl)-2,5-dioxo-4,6,7,8-tetrahydro-3H-quinolin-1-yl]benzonitrile .
user
C24H22N2O4
assistant