Ethyl 3-(bromomethyl)-5-chloro-4-(difluoromethyl)pyridine-2-carboxylate
2-Chloro-4-(difluoromethyl)-6-methoxypyridine-3-sulfonyl chloride
Ethyl 4-cyano-3-(difluoromethyl)-2-hydroxypyridine-5-acetate
Methyl 6-(bromomethyl)-3-chloro-2-(difluoromethyl)pyridine-4-acetate