Methyl 6-cyano-2-(difluoromethyl)-3-hydroxypyridine-4-carboxylate
6-Chloro-4-(chloromethyl)-2-(difluoromethyl)pyridine-3-methanol
Methyl 2-cyano-5-(difluoromethyl)-6-hydroxypyridine-3-carboxylate
2-Chloro-4-(chloromethyl)-5-(difluoromethyl)pyridine-3-methanol