You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 14-(10-phenylanthracen-9-yl)-9-oxapentacyclo[11.8.0.02,10.03,8.016,21]henicosa-1(13),2(10),3,5,7,11,14,16,18,20-decaene into its molecular formula.
user
C40H24O
assistant