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