4,5-双(甲硫代)-1,3-二硫杂环戊烯-2-酮

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

4,5-乙撑二硫代-1,3-二硫酚-2-酮

6,7-dihydro-5H-[1,3]dithiolo[4,5-b][1,4]dithiepin-2-one

1,3-二硫醇-2-酮