Using CCOC(C)=O, CCOc1ccc(-c2cccc(F)c2F)c(F)c1F to produce CCOc1ccc(-c2ccc(C=O)c(F)c2F)c(F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.