Using Cc1ccc(S(=O)(=O)OCC(F)(F)F)cc1, CC(C)(C)OC(=O)NCCS to produce CC(C)(C)OC(=O)NCCSCC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.