7-Iod-4,5,6,7,8,9-hexahydrocycloocta-1,2,3-selenadiazol

5-Oxocyclooctin

5,6,8,9-tetrahydro-4H-cycloocta[1,2,3]selenadiazol-7-one

1-Butyl-2-(1,3-cyclooctadien-1-yl)-1,3-cyclooctadien