Using CCOC(=O)C1=C(C=O)Nc2nccn2C1c1cccc([N+](=O)[O-])c1, NO to produce CCOC(=O)C1=C(C=NO)Nc2nccn2C1c1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.