Using CS(=O)(=O)Oc1ccc(Cl)c(CBr)c1, CC(C)(C)OC(=O)N1CCNC(=O)C1 to produce CC(C)(C)OC(=O)N1CCN(Cc2cc(OS(C)(=O)=O)ccc2Cl)C(=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.