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