You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl (3S)-3-[(4-bromophenyl)-phenylmethoxy]-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H26BrNO3
assistant