2-(Difluoromethyl)-3-hydroxy-4-methoxypyridine-5-carboxylic acid
5-(Difluoromethyl)-2-hydroxy-3-methylpyridine-4-sulfonamide
Methyl 4-(difluoromethyl)-6-hydroxy-2-methoxypyridine-3-carboxylate
Methyl 3-(difluoromethyl)-2-hydroxy-5-methoxypyridine-4-carboxylate