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