Ethyl 5-bromo-4-(difluoromethyl)-3-methoxypyridine-2-carboxylate
Ethyl 3-bromo-4-(difluoromethyl)-2-methoxypyridine-6-carboxylate
2-Bromo-3-(difluoromethyl)-5-methyl-4-(trifluoromethyl)pyridine
Ethyl 3-bromo-2-(difluoromethyl)-6-methoxypyridine-5-carboxylate