You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1'Z,12'Z)-N-phenyl-N-(4-phenylphenyl)spiro[fluoreno[5,6-b][1]benzofuran-7,10'-tricyclo[11.4.0.04,9]heptadeca-1,4,6,8,12,14,16-heptaene]-9-amine .
user
C53H37NO
assistant