Ethyl 2-bromo-5-(difluoromethyl)-3-methoxypyridine-4-carboxylate
Ethyl 2-bromo-4-(difluoromethyl)-6-methoxypyridine-3-carboxylate
Ethyl 2-bromo-4-(difluoromethyl)-5-methoxypyridine-3-carboxylate
2-Bromo-6-(bromomethyl)-3-(difluoromethyl)-5-methoxypyridine