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