Using CC(C)(C)OC(=O)NC1CCNC1=O, CS(=O)(=O)Oc1ccc(Br)c(CBr)c1 to produce CC(C)(C)OC(=O)NC1CCN(Cc2cc(OS(C)(=O)=O)ccc2Br)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.