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