1,2-双(2-碘乙氧基)乙烷

1,2-bis(2-bromoethoxy)ethane

1-溴-2-(2-(2-(2-溴乙氧基)乙氧基)乙氧基)乙烷

1,8-bis(p-tolylsulphonylamino)-3,6-dioxaoctane

1,11-bis(p-tolylsulphonylamino)-3,6,9-trioxaundecane