Methyl 2,3-difluoro-4-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 3,4-dichloro-5-(trifluoromethoxy)pyridine-2-carboxylate
3,4-Difluoro-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Hydroxy-5-(trifluoromethoxy)pyridine-4-acetic acid
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