4-Bromo-5-(difluoromethyl)-3-nitropyridine-2-sulfonyl chloride
3-Bromo-2-(difluoromethyl)-5-methoxypyridine-4-carboxylic acid
3-Bromo-2-(difluoromethyl)-4-methoxypyridine-5-carboxylic acid
2-Bromo-6-(difluoromethyl)-5-methoxypyridine-3-carboxylic acid