Methyl 2-(chloromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-6-acetate
Methyl 4-(bromomethyl)-3-(difluoromethyl)-2-methoxypyridine-6-acetate
Methyl 3-(bromomethyl)-6-methyl-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 4-(bromomethyl)-6-(difluoromethyl)-2-methoxypyridine-3-acetate