Using O=S(=O)(Cl)C(F)(F)F, CSc1ccc(OC(F)(F)[C@H](O)c2ccc(F)cc2)cc1 to produce CSc1ccc(OC(F)(F)[C@H](OS(=O)(=O)C(F)(F)F)c2ccc(F)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.