Using CCOC(=O)c1ccc2cc(OS(=O)(=O)C(F)(F)F)ccc2c1 to produce O=S(=O)(Oc1ccc2cc(CO)ccc2c1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.