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