Using CCO[C@H]1C[C@@]2(C)[C@@H](CC[C@@H]3[C@@H]2C(=O)C[C@@]2(C)[C@H]3CCC23OCCO3)C[C@@H]1O, NO to produce CCO[C@H]1C[C@@]2(C)[C@@H](CC[C@@H]3[C@@H]2C(=NO)C[C@@]2(C)[C@H]3CCC23OCCO3)C[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.