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