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