Using CCOC(=O)CS, CCOC(=O)c1ccc(OCc2ccc(Cl)cc2Cl)cc1F to produce CCOC(=O)c1sc2cc(OCc3ccc(Cl)cc3Cl)ccc2c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.