2-Bromo-6-(chloromethyl)-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine
4-Chloro-3-fluoro-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Methyl 3-bromo-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
4-Chloro-2-fluoro-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride