Using [N-]=[N+]=N, O[C@H]1Cc2ccccc2[C@H]1Nc1nc(C2CC2)c(-c2ccc(Cl)cc2Cl)nc1C1CC1 to produce [N-]=[N+]=N[C@@H]1Cc2ccccc2[C@H]1Nc1nc(C2CC2)c(-c2ccc(Cl)cc2Cl)nc1C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.