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