Using CC(=O)CO[C@@H]1[C@@H](NC(=O)Cc2ccccc2)C(=O)N1C(=O)C(=O)OC(c1ccccc1)c1ccccc1 to produce CC(=O)CO[C@@H]1[C@@H](NC(=O)Cc2ccccc2)C(=O)N1C(O)C(=O)OC(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.