3-Bromo-6-(difluoromethyl)-2-methoxypyridine-4-sulfonyl chloride
3-Bromo-2-(difluoromethyl)-5-methylpyridine-4-acetic acid
3-Bromo-6-(difluoromethyl)-4-methoxypyridine-2-sulfonyl chloride
5-Bromo-2-(difluoromethyl)-3-methoxypyridine-6-sulfonyl chloride