5-(Aminomethyl)-3-(difluoromethyl)-2-iodopyridine-4-carboxaldehyde
2-(Aminomethyl)-5-(difluoromethyl)-6-iodopyridine-3-carboxaldehyde
2-(Aminomethyl)-4-(difluoromethyl)-5-iodopyridine-3-carboxaldehyde
6-(Aminomethyl)-4-(difluoromethyl)-2-iodopyridine-3-acetic acid