Ethyl 3-chloro-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 5-chloro-2-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 5-chloro-2-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 4-chloro-5-(trifluoromethoxy)pyridine-2-carboxylate
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