Using C1CCOC1, COc1ccc(C(=O)OCc2ccc(C=O)cc2)cc1C(C)(C)C to produce COc1ccc(C(=O)OCCc2ccc(CO)cc2)cc1C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.