3-(4-nitrophenyl)-5-phenyl-1,2-oxazole

5-naphthalen-1-ylsulfanyl-3-(4-nitrophenyl)-1,2,4-oxadiazole

3-(4-nitrophenyl)-5-(4-nitrophenyl)sulfanyl-1,2,4-oxadiazole

5-(2,4-dinitrophenyl)sulfanyl-3-(4-nitrophenyl)-1,2,4-oxadiazole

5-(2-chloro-4,6-dinitrophenyl)sulfanyl-3-(4-nitrophenyl)-1,2,4-oxadiazole