Ethyl 5-hydroxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxylate
2-(Difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-acetic acid
Methyl 3-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 4-hydroxy-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carboxylate