Methyl 6-bromo-4-(difluoromethyl)-2-methylpyridine-3-carboxylate
Methyl 6-bromo-4-(difluoromethyl)-3-methylpyridine-2-carboxylate
Methyl 2-bromo-4-(difluoromethyl)-3-methylpyridine-6-carboxylate
2-Bromo-5-(difluoromethyl)-3-nitropyridine-4-acetonitrile