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
Ethyl 6-(difluoromethyl)-2-hydroxy-4-methoxypyridine-3-carboxylate