Using COc1ccc(CO[C@@H](C(=O)OCc2ccccc2)C(C)(C)COS(=O)(=O)CCCCl)cc1, [N-]=[N+]=[N-] to produce COc1ccc(CO[C@@H](C(=O)OCc2ccccc2)C(C)(C)COS(=O)(=O)CCCN=[N+]=[N-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.