Using CCN(CC)S(F)(F)F, CC(C)(C)OC(=O)N1CC(C#N)(CO)C1 to produce CC(C)(C)OC(=O)N1CC(C#N)(CF)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.