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