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