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