Methyl 4-(difluoromethyl)-5-fluoro-3-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 4-(difluoromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-5-carboxylate
3-Fluoro-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetonitrile
Methyl 4-(difluoromethyl)-6-fluoro-3-(trifluoromethoxy)pyridine-2-carboxylate