Using [N-]=[N+]=[N-], O=c1c(Br)c(Br)ccn1Cc1cccc(F)c1 to produce [N-]=[N+]=Nc1ccn(Cc2cccc(F)c2)c(=O)c1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.