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