Using FCCBr, COc1cc(Oc2cccc(C(F)(F)F)c2)nc(C(=O)NCCS)c1 to produce COc1cc(Oc2cccc(C(F)(F)F)c2)nc(C(=O)NCCSCCF)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.