2-(Aminomethyl)-5-(difluoromethyl)-3-iodopyridine-4-carboxylic acid
2-(Aminomethyl)-4-(difluoromethyl)-3-iodopyridine-5-carboxylic acid
3-(Aminomethyl)-6-(difluoromethyl)-4-iodopyridine-2-carboxaldehyde
6-(Chloromethyl)-4-(difluoromethyl)-2-iodo-3-methylpyridine