Methyl 3-amino-4-methoxy-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 2-amino-4-nitro-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-amino-5-methoxy-3-(trifluoromethoxy)pyridine-4-acetate
Methyl 4-amino-2-methyl-6-(trifluoromethoxy)pyridine-3-acetate