You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(4-dibenzofuran-3-ylphenyl)-N-triphenylen-2-yl-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-amine by IUPAC nomenclature, provide its molecular formula.
user
C54H32N2O
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