Methyl 3-bromo-2-cyano-5-(trifluoromethoxy)pyridine-6-carboxylate
6-Bromo-3-cyano-2-(trifluoromethoxy)pyridine-4-methanol
4-Bromo-3-(difluoromethyl)-2-hydroxy-6-(trifluoromethoxy)pyridine
6-Bromo-2-cyano-4-(trifluoromethoxy)pyridine-3-carboxylic acid