4-Fluoro-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-Amino-4-(difluoromethyl)-2-fluoropyridine-3-sulfonamide
5-Cyano-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-Bromo-6-nitro-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride