Using [N-]=[N+]=NCC(=O)c1ccc(Oc2cccc(C(=O)CN=[N+]=[N-])c2)cc1 to produce NCC(=O)c1ccc(Oc2cccc(C(=O)CN)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.