Using CCOC(=O)C(C)(C)C(=O)c1ccc(OCc2cc(C)nc3ccccc23)cc1 to produce CCOC(=O)C(C)(C)C(O)c1ccc(OCc2cc(C)nc3ccccc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.