You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-[7-(N-[4-[4-(N-(9,9-dimethylfluoren-2-yl)anilino)phenyl]phenyl]anilino)-9,9-dimethylfluoren-2-yl]-2,2,3,6-tetramethylheptanenitrile into molecular formula.
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C65H63N3
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