4-Bromo-2-(difluoromethyl)-5-fluoropyridine-3-carbonyl chloride
4-Bromo-2-(difluoromethyl)-3-fluoropyridine-5-carbonyl chloride
3-Bromo-5-(difluoromethyl)-6-fluoropyridine-2-carbonyl chloride
3-Bromo-5-(difluoromethyl)-4-fluoropyridine-2-carbonyl chloride