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