Using Cc1cnc(Cl)c(N)c1, O=C(Cl)c1ccccc1[N+](=O)[O-] to produce Cc1cnc(Cl)c(NC(=O)c2ccccc2[N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.