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