3-(Difluoromethyl)-4-hydroxy-5-iodopyridine-2-sulfonamide
2-(Difluoromethyl)-5-hydroxy-4-methoxypyridine-3-acetic acid
4-(Difluoromethyl)-3-hydroxy-2-methoxypyridine-5-carboxylic acid
Ethyl 4-(difluoromethyl)-3-hydroxy-5-methoxypyridine-2-carboxylate