4-Bromo-5-(difluoromethyl)-3-methoxypyridine-2-carbonyl chloride
4-Bromo-6-(difluoromethyl)-3-methoxypyridine-2-carbonyl chloride
4-Bromo-6-(bromomethyl)-3-(difluoromethyl)-2-nitropyridine
3-Bromo-4-(difluoromethyl)-2-methoxypyridine-5-carbonyl chloride