You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 4-(4-hydroxy-3-methoxyphenyl)-1-(4-methoxy-2-nitrophenyl)-7,7-dimethyl-3,4,6,8-tetrahydroquinoline-2,5-dione using the IUPAC nomenclature.
user
C25H26N2O7
assistant