Using CCCC[Sn](CCCC)(CCCC)c1ccco1, CC(C)(C)c1cc(Br)cc2c1SCC2(C)C to produce CC(C)(C)c1cc(-c2ccco2)cc2c1SCC2(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.