Using CCCC[Sn](CCCC)(CCCC)c1nccs1, N#Cc1ccc(Br)cc1C(F)(F)F to produce N#Cc1ccc(-c2nccs2)cc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.