Ethyl 2-bromo-6-(difluoromethyl)-5-iodopyridine-3-carboxylate
3-Bromo-2-(difluoromethyl)-4-hydroxypyridine-6-sulfonyl chloride
6-Bromo-2-(difluoromethyl)-3-hydroxypyridine-4-sulfonyl chloride
Ethyl 2-bromo-6-(difluoromethyl)-3-iodopyridine-4-carboxylate