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