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