You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[(2Z,4Z)-6-methylidene-1-phenyl-1-benzazocin-9-yl]-4-[3-[2-(4-phenylanilino)phenyl]phenyl]phenyl]naphthalen-2-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C58H43N3
assistant