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