6-(Difluoromethyl)-3-methoxy-4-nitro-2-(trifluoromethoxy)pyridine
3-(Chloromethyl)-5-iodo-6-(trifluoromethoxy)pyridine-2-carboxylic acid
2-(Difluoromethyl)-5-methoxy-3-nitro-4-(trifluoromethoxy)pyridine
4-(Chloromethyl)-6-iodo-3-(trifluoromethoxy)pyridine-2-acetonitrile