Using [N-]=[N+]=NCCOCC1=C(C(=O)NCCCc2ccccc2)C(c2cccc(Cl)c2)NC(=O)N1 to produce NCCOCC1=C(C(=O)NCCCc2ccccc2)C(c2cccc(Cl)c2)NC(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.