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