Using O=C(NCCc1ccc(Cl)cc1Cl)c1ccc(Cl)nc1, [N-]=[N+]=[N-] to produce [N-]=[N+]=Nc1ccc(C(=O)NCCc2ccc(Cl)cc2Cl)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.