Ethyl 4-chloro-3-(difluoromethyl)-5-hydroxypyridine-2-carboxylate
Methyl 5-bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-4-acetate
2-Bromo-3-(chloromethyl)-6-(difluoromethyl)pyridine-4-acetonitrile
4-Chloro-5-(difluoromethyl)-2-methoxypyridine-3-carboxylic acid