Using O=C1OC(CO)CC1(c1ccccc1)c1ccccc1, O=S(=O)(OS(=O)(=O)C(F)(F)F)C(F)(F)F to produce O=C1OC(COS(=O)(=O)C(F)(F)F)CC1(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.