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