Using CN1c2ccccc2C(C)(C)C12C=Nc1c(c(CO)cc3ccccc13)O2 to produce CN1c2ccccc2C(C)(C)C12C=Nc1c(c(C=O)cc3ccccc13)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.