Using CN(NC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)[O-])C(=O)OC(C)(C)C to produce CNNC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.