Using NC(=O)CC(C(=O)O)N1C(=O)c2cccc([N+](=O)[O-])c2C1=O to produce NC(=O)CC(C(=O)O)N1C(=O)c2cccc(N)c2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.