Methyl 4-(difluoromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-(difluoromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine-5-acetate
Ethyl 4-(aminomethyl)-2-hydroxy-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 3-(aminomethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate