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