5-Hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-(Difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-4-acetonitrile
2-(Difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-6-acetonitrile
Ethyl 6-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-acetate