You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-methyl-N-[4-oxo-5-[[4-[2-(1-trityltetrazol-5-yl)phenyl]phenyl]methyl]-3,5a-dihydro-2H-benzo[g][1]benzazepin-3-yl]butanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C52H46N6O2
assistant