You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 12,12-dimethyl-7-N,17-N-bis[6-(2-methylphenyl)dibenzofuran-4-yl]-7-N,17-N-diphenylpentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(13),2(11),3,5,7,9,14,16,18,20-decaene-7,17-diamine is given. What is its corresponding molecular formula?
user