2-{[1-(4-Dimethylamino-phenyl)-meth-(E)-ylidene]-amino}-3-methyl-N-[4-(2-nitro-phenylsulfanyl)-phenyl]-butyramide

2-{4-[(N,N-phthaloyl-valyl)-amino]-phenyl}-naphtho[1,2-d]oxazole-5-sulfonic acid

3-Methyl-2-{[1-(4-nitro-phenyl)-meth-(E)-ylidene]-amino}-N-[4-(2-nitro-phenylsulfanyl)-phenyl]-butyramide

3-Methyl-2-{[1-(4-nitro-phenyl)-meth-(E)-ylidene]-amino}-N-[4-(4-nitro-phenylsulfanyl)-phenyl]-butyramide

2-{[1-(4-Dimethylamino-phenyl)-meth-(E)-ylidene]-amino}-3-methyl-N-[4-(4-nitro-benzenesulfonyl)-phenyl]-butyramide