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