Using CCOC(=O)CC(=O)O, O=C(Cl)c1cc(F)c(F)c(Cl)c1F to produce CCOC(=O)CC(=O)c1cc(F)c(F)c(Cl)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.