Using COc1ccc(-n2ccnc2)cc1C(=O)c1c(C)cc(C)cc1C to produce COc1ccc(-n2ccnc2)cc1C(O)c1c(C)cc(C)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.