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-(3,4-dimethoxyphenyl)-2-oxoethyl] 4-[[2-(3-oxo-2,4-dihydro-1H-quinoxalin-2-yl)acetyl]amino]benzoate .
user
C27H25N3O7
assistant