5-Bromo-2-iodo-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
4-Bromo-3-methoxy-2-(trifluoromethoxy)pyridine-6-carbonyl chloride
4-Bromo-3-iodo-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
4-Bromo-6-methoxy-3-(trifluoromethoxy)pyridine-2-carbonyl chloride