Ethyl 2-bromo-6-(difluoromethyl)-4-(trifluoromethyl)pyridine-3-acetate
6-Bromo-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-3-acetonitrile
6-Bromo-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-acetonitrile
2-Bromo-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-acetonitrile