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