You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-naphthalen-2-yl-8-[10-(12-oxapentacyclo[11.8.0.02,11.03,8.015,20]henicosa-1(21),2(11),3,5,7,9,13,15,17,19-decaen-10-yl)anthracen-9-yl]benzo[k]phenanthridine is the IUPAC name of a molecule. Please give its molecular formula.
user
C61H35NO
assistant