Using COc1ccc(S(=O)(=O)N[C@H](CC(N)=O)C(=O)O)cc1, O=C([O-])[O-] to produce COC(=O)[C@@H](CC(N)=O)NS(=O)(=O)c1ccc(OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.