Using CCP(=O)(CC)N[C@@H](C)C(=O)N1CCC[C@H]1C(=O)OCc1ccccc1 to produce CCP(=O)(CC)N[C@@H](C)C(=O)N1CCC[C@H]1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.