3-Bromo-4-cyano-2-(difluoromethyl)pyridine-6-sulfonyl chloride
3-Bromo-2-cyano-4-(difluoromethyl)pyridine-6-sulfonyl chloride
Ethyl 2-bromo-5-(difluoromethyl)-3-fluoropyridine-6-carboxylate
2-Bromo-5-cyano-3-(difluoromethyl)pyridine-6-sulfonyl chloride