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