3-Cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxaldehyde
4-Fluoro-3-hydroxy-2-methyl-6-(trifluoromethoxy)pyridine
4-Fluoro-2-hydroxy-6-methyl-3-(trifluoromethoxy)pyridine
3-Cyano-2-(fluoromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine