Methyl 3-bromo-4-(difluoromethyl)-5-methoxypyridine-2-carboxylate
Methyl 6-bromo-2-(difluoromethyl)-3-methoxypyridine-4-carboxylate
Ethyl 5-bromo-2-(difluoromethyl)-3-methoxypyridine-6-carboxylate
Methyl 3-bromo-5-(difluoromethyl)-6-methoxypyridine-2-acetate