Using CCOC(=O)CCc1cc(Cl)ccc1NC1CCN(C(=O)OC(C)(C)C)CC1 to produce CC(C)(C)OC(=O)N1CCC(Nc2ccc(Cl)cc2CCC(=O)O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.