3-(4-nitrophenyl)-[1,2]thiazolo[5,4-d]pyrimidin-4-amine

5-amino-3-(4-nitrophenyl)isothiazole-4-carbonitrile

(2Z)-3-amino-2-cyano-3-(4-nitrophenyl)prop-2-enethioamide

2-[chloro-(4-nitrophenyl)methylidene]propanedinitrile

2-[hydroxy(4-nitrophenyl)methylene]malononitrile