2-(Fluoromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-3-acetonitrile
4-(Fluoromethyl)-6-hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
4-Hydroxy-3-methyl-2-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Hydroxy-2-methyl-4-(trifluoromethoxy)pyridine-6-carboxylic acid