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 3,11,16-triphenyl-8,14-bis(4-phenylphenyl)-8,14-diaza-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2,4,6,9(21),10,12,15(20),16,18-nonaene .
user
C60H41BN2
assistant