5-Amino-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetonitrile
3-Amino-4-(chloromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
4-Amino-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-Amino-6-(fluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine