Using CS(=O)(=O)c1cc(C2CCNCC2)ccc1N, CC(C)(C)OC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CCC(c2ccc(N)c(S(C)(=O)=O)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.