5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dioxine-2-selenone

[1,3]dithiolo[4,5-d][1,3,6]oxadithiepin-2-one

4,5-dibromo-1,3-dithiole-2-one

4,5-甲二硫基-1,3-二硫醇-2-酮

5,6-dihydro-2-oxo-1,3-thiaselenolo[2,3-d][1,4]thiaselenin