Using CC(=O)c1ccc(-c2ccc(C(C)=O)cc2[N+](=O)[O-])cc1 to produce CC(=O)c1ccc2c(c1)[nH]c1cc(C(C)=O)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.