Using CCn1nc(C)c(C(=O)c2ccccc2)c1Oc1ccc(OC)cc1 to produce CCn1nc(C)c(C(O)c2ccccc2)c1Oc1ccc(OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.