Using O=N[O-], NC(=O)c1cn(-c2ccccc2)nc1-c1ccc([N+](=O)[O-])o1 to produce O=C(O)c1cn(-c2ccccc2)nc1-c1ccc([N+](=O)[O-])o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.