Using COc1ccc(N)cc1, COc1ccc(C(=O)O)cc1[N+](=O)[O-] to produce COc1ccc(NC(=O)c2ccc(OC)c(N)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.