Using O=C(NCCS(=O)(=O)NC1CNC1)c1ccc(Cl)s1, CC(C)Br to produce CC(C)N1CC(NS(=O)(=O)CCNC(=O)c2ccc(Cl)s2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.