3-(Aminomethyl)-4-(difluoromethyl)-6-methoxypyridine-2-carboxaldehyde
5-(Aminomethyl)-4-(difluoromethyl)-3-methoxypyridine-2-carboxaldehyde
3-(Aminomethyl)-4-(difluoromethyl)-5-methoxypyridine-2-carboxaldehyde
3-(Aminomethyl)-4-(difluoromethyl)-2-methoxypyridine-6-carboxaldehyde