You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(14Z,16Z)-9-fluoranthen-3-yl-18-methylidene-21-phenyl-12-oxa-9,21-diazahexacyclo[18.7.0.02,10.03,8.011,19.022,27]heptacosa-1,3,5,7,10,14,16,19,22,24,26-undecaene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C47H30N2O
assistant