Using NNc1ccccc1C(=O)O, CC1(C)CC(=O)c2cc([N+](=O)[O-])ccc21 to produce CC1(C)c2ccc([N+](=O)[O-])cc2-c2[nH]c3c(C(=O)O)cccc3c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.