Using BrCc1ccc(CBr)cc1, FC(F)(F)c1ccc2c(S)ccnc2c1 to produce FC(F)(F)c1ccc2c(SCc3ccc(CBr)cc3)ccnc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.