5-Chloro-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carbonyl chloride
3-Bromo-5-methoxy-4-(trifluoromethoxy)pyridine-2-carbonyl chloride
5-Chloro-4-fluoro-2-(trifluoromethoxy)pyridine-3-carbonyl chloride
3-Bromo-4-methoxy-5-(trifluoromethoxy)pyridine-2-carbonyl chloride