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