Using CCOC(=O)[C@@H](Cc1ccc(O[C@@H](C)C(=O)OCc2ccccc2)cc1)OCC to produce CCOC(=O)[C@@H](Cc1ccc(O[C@@H](C)C(=O)O)cc1)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.