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