You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(4-naphthalen-1-ylphenyl)-N-(9,9'-spirobi[fluorene]-2-yl)heptacyclo[12.10.2.26,9.02,7.08,13.018,26.021,25]octacosa-1(24),2(7),3,5,8,10,12,14,16,18(26),19,21(25),22,27-tetradecaen-4-amine by IUPAC nomenclature, provide its molecular formula.
user
C69H41N
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