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