4-(Difluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid
Methyl 2-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-6-acetate
Methyl 2-(difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-4-acetate
4-(Difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylic acid