5-(Difluoromethyl)-3-hydroxy-4-methoxypyridine-2-methanol
4-(Difluoromethyl)-2-hydroxy-5-methoxypyridine-3-carboxylic acid
3-(Difluoromethyl)-2-hydroxy-5-methoxypyridine-4-carboxylic acid
2-(Difluoromethyl)-5-hydroxy-4-methoxypyridine-3-carboxylic acid