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