You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-phenyl-14-[3-[3-(9-phenylcarbazol-4-yl)phenyl]phenyl]-10-oxa-15-azapentacyclo[11.8.0.03,11.04,9.016,21]henicosa-1,3(11),4,6,8,12,14,16,18,20-decaene .
user
C55H34N2O
assistant