Using O=S(=O)(Cl)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F, COC(=O)c1ccc(Cl)c(O)c1Cl to produce COC(=O)c1ccc(Cl)c(OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.