3-Bromo-2-nitro-5-(trifluoromethoxy)pyridine-6-carbonyl chloride
2-Chloro-3-cyano-4-(trifluoromethoxy)pyridine-6-carbonyl chloride
3-Bromo-6-nitro-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
3-Bromo-6-nitro-4-(trifluoromethoxy)pyridine-2-carbonyl chloride