Using Cc1ccc(Oc2ccc(C(=O)CNC(C)(C)C)cc2Oc2ccc(C)cc2)cc1 to produce Cc1ccc(Oc2ccc(C(O)CNC(C)(C)C)cc2Oc2ccc(C)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.