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