Using CCOC(=O)C1(C(=O)O)CCN(C(=O)c2ccc(OC)cc2)C1 to produce COc1ccc(C(=O)N2CCC(CO)(C(=O)O)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.