Ethyl 3-methyl-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-methyl-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2-methyl-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2,4-difluoro-3-(trifluoromethoxy)pyridine-5-carboxylate
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