3-(Bromomethyl)-6-(difluoromethyl)-4-methylpyridine-2-acetonitrile
5-(Bromomethyl)-2-(difluoromethyl)-4-methylpyridine-3-acetonitrile
5-(Bromomethyl)-2-(difluoromethyl)-3-methylpyridine-6-acetonitrile
5-(Bromomethyl)-2-(difluoromethyl)-3-methylpyridine-4-acetonitrile