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