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