You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
14-[3-[4-(2-ethyl-4,5-dihydrobenzimidazol-1-yl)phenyl]phenyl]-2-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 The above is the IUPAC name of a molecule. Write its molecular formula.
user
C46H33N3O
assistant