methyl 4-(2-oxoazetidin-1-yl)benzoate

4-(2-oxoazetidin-1-yl)benzoic acid

methyl 4-(3-bromopropanoylamino)benzoate

methyl 4-(sulfinylamino)benzoate

methyl 2-(trifluoromethyl)-3H-benzimidazole-5-carboxylate