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