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