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