Using Sc1nc2ccccc2s1, Fc1c(F)c(F)c(CBr)c(F)c1F to produce Fc1c(F)c(F)c(CSc2nc3ccccc3s2)c(F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.