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