Ethyl 3-(bromomethyl)-6-(difluoromethyl)-2-methoxypyridine-4-carboxylate
3-(Bromomethyl)-2-(difluoromethyl)-4-methoxypyridine-5-acetic acid
Ethyl 3-(bromomethyl)-6-(difluoromethyl)-4-methoxypyridine-2-carboxylate
Ethyl 5-(bromomethyl)-2-(difluoromethyl)-3-methoxypyridine-6-carboxylate