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