You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [(3R)-1-[2-(4-ethoxyphenyl)-2-oxoethyl]-1-azoniabicyclo[2.2.2]octan-3-yl] (2R)-2-anilino-2-phenylacetate;bromide ?
user
C31H35BrN2O4
assistant