You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[4-(4-bromobenzoyl)oxyphenyl]-2-oxoethyl] 3-(8,9-dibromo-3,5-dioxo-4-azatricyclo[5.2.1.02,6]decan-4-yl)benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H22Br3NO7
assistant