6-Bromo-2-(difluoromethyl)-3-iodopyridine-4-sulfonyl chloride
6-Bromo-2-(difluoromethyl)-4-iodopyridine-3-sulfonyl chloride
Methyl 2-bromo-4-(difluoromethyl)-3-methoxypyridine-5-carboxylate
2-Bromo-6-(difluoromethyl)-3-iodopyridine-5-sulfonyl chloride