Using CI, Cc1cnc(N2CCN(C(=O)c3ccc(Br)cc3NS(C)(=O)=O)CC2)c(C)c1 to produce Cc1cnc(N2CCN(C(=O)c3ccc(Br)cc3N(C)S(C)(=O)=O)CC2)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.