2-(Chloromethyl)-5-(difluoromethyl)-4-hydroxypyridine-3-carboxaldehyde
5-(Bromomethyl)-4-(difluoromethyl)-2-hydroxypyridine-3-acetonitrile
3-(Chloromethyl)-6-(difluoromethyl)-2-hydroxypyridine-4-methanol
2-(Bromomethyl)-6-(difluoromethyl)-4-hydroxypyridine-3-acetonitrile