You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(4-bromophenyl)-3-(3-fluorophenyl)-6-imino-8-methyl-2,7-dioxabicyclo[3.2.1]octane-4,4,5-tricarbonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H14BrFN4O2
assistant