Using CCOC(=O)[C@H](Cc1ccccc1)C[C@@H](Cc1ccccc1)C(=O)Cl, N[C@@H](COCc1ccccc1)C(=O)O to produce CCOC(=O)[C@H](Cc1ccccc1)C[C@@H](Cc1ccccc1)C(=O)N[C@@H](COCc1ccccc1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.