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