Using CCOC(=O)C1(S(=O)(=O)c2ccc(OC)cc2)CCN(CCc2ccc(OC)cc2)CC1 to produce COc1ccc(CCN2CCC(C(=O)O)(S(=O)(=O)c3ccc(OC)cc3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.