Methyl 3-(difluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate
5-Hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-acetonitrile
Methyl 2-(difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-5-acetate
4-Hydroxy-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-acetonitrile