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