3-(Chloromethyl)-5-(difluoromethyl)-2-hydroxypyridine-6-acetonitrile
5-(Difluoromethyl)-3-iodo-4-methoxypyridine-2-carboxaldehyde
6-(Chloromethyl)-2-(difluoromethyl)-4-hydroxypyridine-3-carboxaldehyde
5-(Difluoromethyl)-3-iodo-2-methoxypyridine-4-carboxylic acid