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