Ethyl 6-bromo-2-(difluoromethyl)-4-nitropyridine-3-acetate
3-Bromo-5-(difluoromethyl)-2-methoxypyridine-6-sulfonamide
2-Bromo-3-(difluoromethyl)-4-nitropyridine-5-sulfonyl chloride
2-Bromo-3-(chloromethyl)-5-(difluoromethyl)-6-(trifluoromethyl)pyridine