Using CCCC[Sn](Cl)(CCCC)CCCC, CC(C)(C)c1ccc(Br)cc1 to produce CCCC[Sn](CCCC)(CCCC)c1ccc(C(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.