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