Using CC1(C)COC(CCC(=O)c2ccc(F)cc2)OC1, CS(=O)[O-] to produce CC1(C)COC(CCC(=O)c2ccc(S(C)(=O)=O)cc2)OC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.