2-(Chloromethyl)-3-(difluoromethyl)-6-hydroxy-5-methoxypyridine
4-(Bromomethyl)-6-(difluoromethyl)-2-hydroxy-3-methoxypyridine
3-(Bromomethyl)-2-(difluoromethyl)-6-hydroxy-5-methoxypyridine
2-(Difluoromethyl)-3-hydroxy-4-methyl-5-(trifluoromethyl)pyridine