Ethyl 3-(bromomethyl)-6-(difluoromethyl)-4-fluoropyridine-2-carboxylate
Methyl 5-(difluoromethyl)-2-fluoro-3-(trifluoromethyl)pyridine-4-acetate
Methyl 4-(difluoromethyl)-6-fluoro-3-(trifluoromethyl)pyridine-2-acetate
Methyl 5-(difluoromethyl)-4-fluoro-3-(trifluoromethyl)pyridine-2-acetate