2-Cyano-6-(difluoromethyl)-3-hydroxypyridine-4-carbonyl chloride
Methyl 2-chloro-5-(chloromethyl)-4-(difluoromethyl)pyridine-3-carboxylate
6-Cyano-4-(difluoromethyl)-3-hydroxypyridine-2-carbonyl chloride
4-Chloro-5-(chloromethyl)-2-(difluoromethyl)pyridine-3-carboxylic acid