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