3-Bromo-5-(difluoromethyl)-6-nitropyridine-2-sulfonyl chloride
3-Bromo-5-(difluoromethyl)-4-nitropyridine-2-sulfonyl chloride
Methyl 2-bromo-3-(chloromethyl)-4-(difluoromethyl)pyridine-6-acetate
3-Bromo-5-(difluoromethyl)-2-nitropyridine-4-sulfonyl chloride