Methyl 3-hydroxy-4-nitro-5-(trifluoromethoxy)pyridine-2-acetate
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