Using Cc1ccc(S(=O)(=O)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)F)cc1, CC([O-])=S to produce CC(=S)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.