Using CC1(C)C(=O)N(Br)C(=O)N1Br, Cc1nc2cccc(Cl)c2nc1-c1cc(F)ccc1Cl to produce Fc1ccc(Cl)c(-c2nc3c(Cl)cccc3nc2CBr)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.