Methyl 2,4-dichloro-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2,6-difluoro-3-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2,4-dichloro-3-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 3,6-difluoro-4-(trifluoromethoxy)pyridine-2-carboxylate
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