Using CC(=O)C(C)CC(=O)c1ccc(S(C)(=O)=O)cc1, Nc1ccc(Br)cc1 to produce Cc1cc(-c2ccc(S(C)(=O)=O)cc2)n(-c2ccc(Br)cc2)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.