4-(Bromomethyl)-3-(difluoromethyl)-6-hydroxypyridine-2-carboxylic acid
3-(Chloromethyl)-2-(difluoromethyl)-4-hydroxypyridine-5-methanol
3-(Bromomethyl)-4-(difluoromethyl)-6-hydroxypyridine-2-carboxylic acid
2-(Aminomethyl)-4-(difluoromethyl)-3-hydroxypyridine-6-carboxaldehyde