You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-[4-(4-dibenzofuran-2-ylphenyl)phenyl]-N-(9,9-dimethyl-7-phenylfluoren-2-yl)phenanthren-9-amine ?
user
C59H41NO
assistant