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