3-(Chloromethyl)-4-(difluoromethyl)-5-methoxypyridine-2-acetonitrile
6-(Chloromethyl)-2-(difluoromethyl)-3-methoxypyridine-4-acetonitrile
3-(Chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-5-acetonitrile
6-(Chloromethyl)-2-(difluoromethyl)-4-methoxypyridine-3-acetonitrile