You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-bromo-6-chloro-4-[(2-cyclohexyl-4-oxoquinazolin-3-yl)iminomethyl]phenyl] acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H21BrClN3O3
assistant