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