Methyl 3-bromo-6-(difluoromethyl)-2-iodopyridine-5-carboxylate
3-Bromo-6-(difluoromethyl)-4-hydroxypyridine-2-carbonyl chloride
Methyl 5-bromo-2-(difluoromethyl)-4-iodopyridine-3-carboxylate
Methyl 5-bromo-2-(difluoromethyl)-3-iodopyridine-4-carboxylate