Using O=C(NCc1ccccc1Cl)c1cccnc1Oc1cccc([N+](=O)[O-])c1 to produce Nc1cccc(Oc2ncccc2C(=O)NCc2ccccc2Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.