Using Cn1nc(Cl)cc(Nc2ccc(OC(C)(C)CO)cn2)c1=O to produce Cn1nc(Cl)cc(Nc2ccc(OC(C)(C)C=O)cn2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.