You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-methyl-N-[2-[2-[5-[4-[4-[2-[1-[2-[(4-methylpiperazine-1-carbonyl)amino]-2-phenylacetyl]pyrrolidin-2-yl]-1H-imidazol-5-yl]-1-bicyclo[2.2.2]octanyl]phenyl]-1H-imidazol-2-yl]pyrrolidin-1-yl]-2-oxo-1-phenylethyl]piperazine-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C56H70N12O4
assistant