2,2’-硫代二乙酰胺

1-thia-4,8-diazacyclodecane-3,9-dione

1,11-dithia-4,8,14,18-tetrazacycloicosane-3,9,13,19-tetrone

1,7-dithia-4,10-diazacyclododecane-3,11-dione

2,6-DIKETO-21-CROWN-7