Ethyl 6-bromo-3-(chloromethyl)-2-(difluoromethyl)pyridine-4-carboxylate
Ethyl 2-bromo-5-(chloromethyl)-4-(difluoromethyl)pyridine-3-carboxylate
3-Bromo-5-(difluoromethyl)-2-methylpyridine-6-acetonitrile
5-Bromo-4-(difluoromethyl)-2-methylpyridine-3-acetonitrile