6-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-sulfonyl chloride
3-Bromo-4-fluoropyridine-2-sulfonyl chloride
3-Cyano-2-fluoro-4-nitro-6-(trifluoromethoxy)pyridine
Ethyl 3-bromo-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carboxylate