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