Using COC(=O)[C@@H]1CC[C@H]1CO, O=C(O)C(F)(F)S(=O)(=O)F to produce COC(=O)[C@@H]1CC[C@H]1COC(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.