Using CCOC(=O)C(F)(F)F, CC(=O)c1ccc(OC(F)(F)F)cc1 to produce O=C(/C=C(\O)C(F)(F)F)c1ccc(OC(F)(F)F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.