2,4-Difluoro-3-(trifluoromethoxy)pyridine-5-acetonitrile
4-(Difluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine
2,4-Dichloro-3-(trifluoromethoxy)pyridine-5-carboxylic acid
4-(Difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine
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