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