Using CCN(CC)S(F)(F)F, O=C(O[C@H]1[C@H](O)CN(C(=O)OCc2ccccc2)[C@@H]1CO)c1ccccc1 to produce O=C(O[C@H]1[C@H](O)CN(C(=O)OCc2ccccc2)[C@H]1CF)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.