Using CCCC[Sn](CCCC)(CCCC)c1nc(C)cs1, COc1cc(Cl)nc(-c2nc(C(F)(F)F)cs2)c1 to produce COc1cc(-c2nc(C)cs2)nc(-c2nc(C(F)(F)F)cs2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.