Ethyl 4-bromo-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 4-bromo-2-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate
4-Bromo-6-fluoro-3-(trifluoromethoxy)pyridine-2-sulfonamide
Ethyl 5-bromo-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxylate