Using COC(=O)C1=C(Br)/C(=N/OS(C)(=O)=O)CC(c2ccc(Cl)c(OC)c2F)N1 to produce COC(=O)c1nc(-c2ccc(Cl)cc2F)cc(N)c1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.