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