Ethyl 3-(fluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate
5-(Difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-methanol
Ethyl 4-(fluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate
3-(Difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-6-methanol