You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[4-[2-(9-methylfluoren-9-yl)cyclohexa-1,5-dien-1-yl]naphthalen-1-yl]-N,9,9-triphenylfluoren-2-amine into molecular formula.
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C61H45N
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