3-(Bromomethyl)-5-methyl-6-(trifluoromethoxy)pyridine-2-acetonitrile
3-(Bromomethyl)-2-methyl-6-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Chloromethyl)-2-(difluoromethyl)-5-methoxypyridine-3-acetonitrile
2-(Chloromethyl)-4-(difluoromethyl)-5-methoxypyridine-3-acetonitrile