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