Using CC1(CC(=O)C(F)(F)F)CCOc2ccc(F)cc21, C[S+](C)(C)=O to produce CC1(CC2(C(F)(F)F)CO2)CCOc2ccc(F)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.