3-(Bromomethyl)-4-(difluoromethyl)-6-hydroxy-2-methylpyridine
2-(Chloromethyl)-3-(difluoromethyl)-6-hydroxy-5-methoxypyridine
4-(Bromomethyl)-6-(difluoromethyl)-2-hydroxy-3-methoxypyridine
3-(Bromomethyl)-2-(difluoromethyl)-6-hydroxy-5-methoxypyridine