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 5-naphthalen-1-yl-7-naphthalen-2-yl-2-(9-naphthalen-2-ylcarbazol-3-yl)indolo[2,3-b]carbazole .
user
C60H37N3
assistant