Using COc1ccc(N)cc1, O=C(O)c1cccc(O)c1[N+](=O)[O-] to produce COc1ccc(NC(=O)c2cccc(O)c2[N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.