2-Amino-4-(aminomethyl)-5-(difluoromethyl)pyridine-3-acetonitrile
2-Amino-3-(aminomethyl)-6-(difluoromethyl)pyridine-5-acetonitrile
2-Amino-4-(aminomethyl)-3-(difluoromethyl)pyridine-6-carboxaldehyde
3-Amino-6-(aminomethyl)-2-(difluoromethyl)-4-(trifluoromethyl)pyridine