2-(Difluoromethyl)-5-fluoro-4-(trifluoromethoxy)pyridine-3-carboxylic acid
6-(Difluoromethyl)-4-fluoro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxaldehyde
6-Fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxaldehyde