Using CC([O-])=S, CCOC(=O)C1=C(OS(=O)(=O)C(F)(F)F)CCC2(C1)OCCO2 to produce CCOC(=O)C1=C(SC(C)=O)CCC2(C1)OCCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.