You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 9-[2-[4-(19-oxapentacyclo[13.3.1.05,18.08,17.011,16]nonadeca-1,3,5(18),6,8(17),9,11(16),12,14-nonaen-2-yl)-6-phenyl-1,3,5-triazin-2-yl]phenyl]carbazole .
user
C45H26N4O
assistant