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