ethyl 2-(1H-benzimidazol-2-ylhydrazinylidene)propanoate

2-(1H-benzimidazol-2-ylhydrazinylidene)propanoic acid

2-[(4-hydroxy-3-methoxyphenyl)methylidene]-3a,4,4a,5,6,7,8,8a-octahydro-[1,3]thiazolo[3,2-a]benzimidazol-1-one

(2E)-2-[(3,4-dimethoxy-2-nitrophenyl)methylidene]-[1,3]thiazolo[3,2-a]benzimidazol-1-one

(2E)-2-[(3,4-dichlorophenyl)methylidene]-[1,3]thiazolo[3,2-a]benzimidazol-1-one