Using CC(C)(C)OC(=O)N1CCN(Cc2cc(OS(C)(=O)=O)ccc2Br)C(=O)C1 to produce CS(=O)(=O)Oc1ccc(Br)c(CN2CCNCC2=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.