Using CCOc1ccc2c(c1)[C@]1(C)CCN(C)[C@@H]1N2C, O=[N+]=O to produce CCOc1cc([N+](=O)[O-])c2c(c1)[C@]1(C)CCN(C)[C@@H]1N2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.