3-Chloro-2-methyl-4-(trifluoromethoxy)pyridine-6-carbonyl chloride
3-Chloro-5-methoxy-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-Chloro-5-methoxy-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-Chloro-4-methoxy-6-(trifluoromethoxy)pyridine-3-carbonyl chloride