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