Methyl-6-acetamido-4,5-dihydro-4-methyl-5-oxo-1,2-dithiolo[4,3-b]pyrrol-3-carboxylat

N-(5,6-Dihydro-5-methyl-6-oxo-2,2-diphenyl-1,3-dithiino[5,4-b]pyrrol-7-yl)acetamid

Methyl-4,5-dihydro-4-methyl-5-oxo-1,2-dithiolo[4,3-b]pyrrol-3-carboxylat

Methyl-3-(ethoxycarbonylmethylen)-4-(methylamino)-3H-1,2-dithiol-5-carboxylat

Methyl-6-brom-4,5-dihydro-4-methyl-5-oxo-1,2-dithiolo(4,3-b)pyrrol-3-carboxylat