Using CSc1cc(O)ccc1Cl, FC(F)(F)c1ccc(Cl)c(Cl)c1 to produce CSc1cc(Oc2ccc(C(F)(F)F)cc2Cl)ccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.