4-Amino-5-fluoro-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-Amino-4-(difluoromethyl)-6-methyl-2-(trifluoromethoxy)pyridine
4-Amino-6-fluoro-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-Amino-4-(difluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine