Using COC(=O)c1cc(S(C)(=O)=O)ccc1O, CC(OS(=O)(=O)C(F)(F)F)C(F)(F)F to produce COC(=O)c1cc(S(C)(=O)=O)ccc1OC(C)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.