Using CC(C)OC1CC(=O)CC(c2cccc(Cl)c2)C12C(=O)Nc1cc(Cl)ccc12, [N-]=[N+]=[N-] to produce CC(C)O[C@@H]1CNC(=O)C[C@H](c2cccc(Cl)c2)[C@@]12C(=O)Nc1cc(Cl)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.