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