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