You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
17-dibenzofuran-2-yl-9-(4,6-diphenyl-1,3,5-triazin-2-yl)-9,15,17-triazapentacyclo[11.7.0.02,10.03,8.014,18]icosa-1(13),2(10),3,5,7,11,14(18),15,19-nonaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C44H26N6O
assistant