Ethyl 2-bromo-6-(difluoromethyl)-5-hydroxypyridine-3-carboxylate
3-Bromo-4-(chloromethyl)-2-cyano-6-(difluoromethyl)pyridine
Ethyl 2-bromo-6-(difluoromethyl)-4-hydroxypyridine-3-carboxylate
Ethyl 2-bromo-6-(difluoromethyl)-3-hydroxypyridine-4-carboxylate