4-Bromo-3-(difluoromethyl)-6-methoxypyridine-2-carbonyl chloride
4-Bromo-6-(difluoromethyl)-3-iodopyridine-2-sulfonamide
4-Bromo-3-(difluoromethyl)-5-methoxypyridine-2-carbonyl chloride
4-Bromo-3-(difluoromethyl)-2-methoxypyridine-5-carbonyl chloride