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