Ethyl 3-(aminomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-(difluoromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 3-(aminomethyl)-2-hydroxy-6-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2-(difluoromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine-4-carboxylate