Using Fc1ccc(C(F)(F)CCBr)cc1, CCOC(=O)c1sc(C)nc1S to produce CCOC(=O)c1sc(C)nc1SCCC(F)(F)c1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.