Methyl 2-amino-6-hydroxy-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-amino-3-chloro-6-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-amino-4-fluoro-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 6-amino-4-bromo-3-(trifluoromethoxy)pyridine-2-acetate