3-Cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylic acid
3-Fluoro-2-methyl-6-(trifluoromethoxy)pyridine-4-methanol
3-(Chloromethyl)-4-fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine