Using CC(C)(C)OC(=O)N1C[C@H](NC(=O)c2ccc(Cl)s2)C[C@H]1CN=[N+]=[N-] to produce CC(C)(C)OC(=O)N1C[C@H](NC(=O)c2ccc(Cl)s2)C[C@H]1CN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.