Methyl 3-amino-6-methyl-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 4-bromo-2-fluoro-3-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 5-amino-2-methyl-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 5-bromo-3-fluoro-4-(trifluoromethoxy)pyridine-2-carboxylate