Using COC(=O)C(CC1CCCC1)c1cccc(S(=O)(=O)C(F)(F)F)c1 to produce O=C(O)C(CC1CCCC1)c1cccc(S(=O)(=O)C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.