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