2,4-Dihydroxy-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine
2-Nitro-4-(trifluoromethoxy)pyridine-6-methanol
2-(Difluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine
4-Nitro-2-(trifluoromethoxy)pyridine-5-carboxylic acid
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