3-Amino-2-(aminomethyl)-6-(difluoromethyl)pyridine-5-carboxaldehyde
2-Amino-4-(difluoromethyl)-3-methoxypyridine-5-methanol
3-Amino-2-(aminomethyl)-5-(difluoromethyl)pyridine-4-carboxaldehyde
6-Amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-4-carboxaldehyde