Ethyl 3-hydroxy-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-carboxylate
Methyl 2-hydroxy-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-acetate
Ethyl 3-hydroxy-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-carboxylate
Methyl 6-hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate