You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by tert-butyl 2-[4-[3-amino-2-(4-bromo-2-oxo-1H-pyridin-3-yl)-3-oxopropyl]phenyl]benzoate ?
user
C25H25BrN2O4
assistant