Using [N-]=[N+]=[N-], O[C@H]1C[C@@H](c2ccccc2)[C@]2(c3ccc(Cl)cc3)Oc3cc(OCCCl)ccc3[C@]12O to produce [N-]=[N+]=NCCOc1ccc2c(c1)O[C@@]1(c3ccc(Cl)cc3)[C@H](c3ccccc3)C[C@H](O)[C@@]21O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.