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