Using Nc1ccc(Cl)cc1C(=O)O, COC(=O)[C@@H](N)Cc1ccc(OCc2ccc(C(C)(C)C)cc2)cc1 to produce COC(=O)[C@H](Cc1ccc(OCc2ccc(C(C)(C)C)cc2)cc1)NC(=O)c1cc(Cl)ccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.