3-Bromo-5-(difluoromethyl)-6-methoxypyridine-2-sulfonyl chloride
3-Bromo-5-(difluoromethyl)-4-methoxypyridine-2-sulfonyl chloride
3-Bromo-5-(difluoromethyl)-2-methoxypyridine-4-sulfonyl chloride
Ethyl 2-(aminomethyl)-5-bromo-6-(difluoromethyl)pyridine-3-carboxylate