Using CCCC[Sn](Cl)(CCCC)CCCC, FC(F)(F)c1ccc(-c2cc(-n3cnc(I)c3)nc(C(F)(F)F)c2)cc1 to produce CCCC[Sn](CCCC)(CCCC)c1cn(-c2cc(-c3ccc(C(F)(F)F)cc3)cc(C(F)(F)F)n2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.