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