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