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