Using CCOC(=O)c1ccc(-c2ccccc2)c(-c2ccc(C(F)(F)F)cc2)n1 to produce COC(=O)c1ccc(-c2ccccc2)c(-c2ccc(C(F)(F)F)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.