4-Fluoro-3-nitro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
5-Cyano-2-iodo-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
6-Fluoro-2-nitro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
4-Cyano-2-iodo-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride