You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-[(4-aminophenyl)methyl]-3-[5-[[5-[2-methyl-4-(2-oxopyrrolidin-1-yl)phenyl]pyridin-2-yl]amino]pyridin-3-yl]imidazolidin-2-one ?
user
C31H31N7O2
assistant