6-(Bromomethyl)-3-(difluoromethyl)-2-hydroxypyridine-4-carboxylic acid
4-(Difluoromethyl)-6-hydroxy-3-methylpyridine-2-sulfonamide
3-(Bromomethyl)-5-(difluoromethyl)-6-hydroxypyridine-2-carboxaldehyde
3-(Difluoromethyl)-5-hydroxy-2-methylpyridine-4-sulfonamide