6-Amino-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetonitrile
3-Amino-2-methoxy-4-(trifluoromethoxy)pyridine-5-methanol
2-Amino-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetonitrile
2-Amino-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetonitrile