Methyl 4-bromo-6-cyano-2-(trifluoromethoxy)pyridine-3-carboxylate
4-Bromo-2-fluoro-3-(trifluoromethoxy)pyridine-5-carboxylic acid
4-Bromo-5-hydroxy-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Bromo-3-hydroxy-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride