4-(Difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-(Difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-Hydroxy-2-nitro-5-(trifluoromethoxy)pyridine-6-carbonyl chloride
Methyl 3-hydroxy-6-nitro-2-(trifluoromethoxy)pyridine-5-carboxylate