You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
11-[(3-fluorophenyl)methyl]-8-(2-methoxyphenyl)-5-methyl-2,4,6,7,11-pentazatricyclo[7.4.0.03,7]trideca-1,3,5,8,12-pentaen-10-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H18FN5O2
assistant