adamantane-2-thione

7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-germanorbornadiene

2,2'-dihydroxy-2,2'-biadamantane

3-(2-adamantyl)-2,2-dimesityl-1,2-thiagermirane

2,3-二甲基-1,3-丁二烯