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