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