Using O=[N+]([O-])c1cccnc1Cl, Nc1cccc(NC(=O)c2ccc3ccccc3c2)c1 to produce O=C(Nc1cccc(Nc2ncccc2[N+](=O)[O-])c1)c1ccc2ccccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.