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