Ethyl 3-bromo-2-(bromomethyl)-6-(difluoromethyl)pyridine-5-acetate
5-Bromo-2-(difluoromethyl)-3-methylpyridine-4-sulfonyl chloride
Ethyl 3-bromo-2-(bromomethyl)-5-(difluoromethyl)pyridine-6-acetate
4-Bromo-3-(difluoromethyl)-5-methylpyridine-2-sulfonyl chloride