Ethyl 3-chloro-6-cyano-4-(difluoromethyl)pyridine-2-carboxylate
4-Chloro-5-(difluoromethyl)-3-hydroxypyridine-2-acetonitrile
2-Chloro-4-cyano-3-(difluoromethyl)pyridine-5-carbonyl chloride
4-Chloro-6-(difluoromethyl)-3-hydroxypyridine-2-carboxaldehyde