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 N-[5-(3,5-dimethylpiperidine-1-carbonyl)-2-methylphenyl]-4-oxo-4-(3-oxo-2,4-dihydroquinoxalin-1-yl)butanamide .
user
C27H32N4O4
assistant