4-Fluoro-3-nitro-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
6-(Difluoromethyl)-4-hydroxy-3-methyl-2-(trifluoromethoxy)pyridine
2-(Bromomethyl)-5-hydroxy-3-iodo-4-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-3-hydroxy-5-methyl-6-(trifluoromethoxy)pyridine