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