6-Fluoro-3-iodo-4-(trifluoromethoxy)pyridine-2-sulfonamide
4-(Chloromethyl)-6-cyano-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Chloromethyl)-2-cyano-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
5-(Chloromethyl)-3-cyano-4-(trifluoromethoxy)pyridine-2-carboxaldehyde