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 (9S)-9-(2,3-difluorophenyl)-17-(4-methoxyphenyl)-12,14-dimethyl-1,8,12,14-tetrazatetracyclo[8.7.0.02,7.011,16]heptadeca-2,4,6,10,16-pentaene-13,15-dione .
user
C28H22F2N4O3
assistant