6-Bromo-2-(difluoromethyl)-3-methylpyridine-4-sulfonyl chloride
Ethyl 3-bromo-4-(difluoromethyl)-6-nitropyridine-2-carboxylate
Ethyl 3-bromo-4-(difluoromethyl)-5-nitropyridine-2-carboxylate
Ethyl 3-bromo-4-(difluoromethyl)-2-nitropyridine-5-carboxylate