Using CSCCN1C[C@H](c2cccc(F)c2F)CC[C@@H](NC(=O)OC(C)(C)C)C1=O, O=C([O-])[O-] to produce CS(=O)CCN1C[C@H](c2cccc(F)c2F)CC[C@@H](NC(=O)OC(C)(C)C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.