Methyl 2,4-dihydroxy-3-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-amino-6-bromo-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 5-amino-2-bromo-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-amino-5-bromo-2-(trifluoromethoxy)pyridine-3-carboxylate