You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 7-N,17-N-di(dibenzofuran-4-yl)-12,12-dimethyl-7-N,17-N-bis(3-methylphenyl)pentacyclo[11.8.0.02,11.04,9.014,19]henicosa-1(13),2(11),3,5,7,9,14(19),15,17,20-decaene-7,17-diamine ?
user
C61H44N2O2
assistant