You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 14-(9,9-dimethylfluoren-2-yl)spiro[14-azahexacyclo[11.11.0.01,21.03,11.04,9.015,20]tetracosa-3(11),4,6,8,12,15,17,19,21,23-decaene-10,9'-fluorene] is given. What is its corresponding molecular formula?
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C50H35N
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