You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
14-N,31-N-di(dibenzofuran-4-yl)-17,17,34,34-tetramethyl-14-N,31-N-diphenyl-6,23-dioxanonacyclo[18.14.0.03,18.04,16.05,13.07,12.021,33.022,30.024,29]tetratriaconta-1(20),2,4,7,9,11,13,15,18,21,24,26,28,30,32-pentadecaene-14,31-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C72H48N2O4
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