4-Bromo-5-cyano-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Methyl 2-bromo-5-fluoro-4-(trifluoromethoxy)pyridine-3-carboxylate
4-Bromo-3-cyano-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
Ethyl 2-bromo-5-chloro-3-(trifluoromethoxy)pyridine-4-carboxylate