You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 7-(1-azapentacyclo[10.6.1.02,7.08,19.013,18]nonadeca-2(7),3,5,8,10,12(19),13,15,17-nonaen-5-yl)-N-(4-dibenzofuran-4-ylphenyl)-9,9-diphenyl-N-(4-phenylphenyl)fluoren-2-amine into molecular formula.
user
C73H46N2O
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