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