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