Using Fc1cccc(F)c1C1=NC(c2ccc(Br)cc2)CS1, C[Sn](C)(C)c1ccc(OCC(F)(F)F)nc1 to produce Fc1cccc(F)c1C1=NC(c2ccc(-c3ccc(OCC(F)(F)F)nc3)cc2)CS1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.