Using NO, CCN1CC[C@]2(c3cccc(OC)c3)CC(=O)CC[C@H]2C1 to produce CCN1CC[C@]2(c3cccc(OC)c3)CC(=NO)CC[C@H]2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.