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 (9R,11S)-9-(2,4-dimethoxyphenyl)-11-(2-fluorophenyl)-4-methyl-8-oxa-12,13,15,17-tetrazatetracyclo[8.7.0.02,7.012,16]heptadeca-1(10),2,4,6,13,15-hexaene .
user
C27H23FN4O3
assistant