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