Using COc1ccc(CN(C)C(=O)OC(C)(C)C)cc1N(CCN1CCOCC1)S(C)(=O)=O to produce CNCc1ccc(OC)c(N(CCN2CCOCC2)S(C)(=O)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.