You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (3S)-4-oxo-3-phenyl-4-[(2S)-2-[5-[4-[4-[2-[(2S)-1-[(2R)-2-phenyl-2-piperidin-1-ylacetyl]pyrrolidin-2-yl]-1H-imidazol-5-yl]phenyl]phenyl]-1H-imidazol-2-yl]pyrrolidin-1-yl]butanoic acid into molecular formula.
user
C49H51N7O4
assistant