Using CN1CCC(OC2c3ccccc3CCn3c2nc(-c2ccccc2)c3CO)CC1 to produce CN1CCC(OC2c3ccccc3CCn3c2nc(-c2ccccc2)c3C=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.