You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-(4-bromo-3,5-dimethylanilino)-2-oxoethyl] 3-[(15S,19S)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaen-17-yl]benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C35H27BrN2O5
assistant